WO2014082575A1

WO2014082575A1 - Physical broadcast channel transmission method, device and system

Info

Publication number: WO2014082575A1
Application number: PCT/CN2013/087927
Authority: WO
Inventors: 夏金环; 余政
Original assignee: 华为技术有限公司
Priority date: 2012-11-27
Filing date: 2013-11-27
Publication date: 2014-06-05
Also published as: CN103840932B; CN108429610A; CN108429610B; CN103840932A

Abstract

The present invention relates to the field of communications. Disclosed are a physical broadcast channel (PBCH) transmission method, device and system, capable of improving the strength of a PBCH signal received by a user equipment, and improving communication quality. The PBCH transmission method comprises: dividing the PBCH data into n PBCH data segments, wherein n=2x, and X is an integer greater than or equal to 0; repeatedly mapping twice the m-th PBCH data segment into a default resource position in the preset PBCH, wherein 1≤m≤n, the preset PBCH is provided with 2y wireless frames, and y≥x. The present invention is used for data transmission in a physical broadcast channel.

Description

Physical broadcast channel transmission method, device and system

This application claims priority to the Chinese Patent Application No. 201210490811.5, entitled "A Physical Broadcast Channel Transmission Method, Apparatus and System", filed on November 27, 2012, the entire contents of which are incorporated by reference. In this application. TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a physical broadcast channel transmission method, device, and system. BACKGROUND Currently, a radio frame has a structure in which: one radio frame includes 10 subframes, and each subframe includes two slots. Generally, slots in 10 subframes are in accordance with No. 0, No. 1, No. 2, ·· ·, No. 19, No. 20 is indicated by the number, that is, in the case of a radio frame, the 0th sub-frame consists of the 0th slot and the 1st slot, and the 1st subframe consists of the 2nd slot and the 3rd. The slot composition, ···, subframe 9 consists of slot 19 and slot 20.

In OFDM (Orthogonal Frequency Division Multiplexing) systems, a guard interval or CP (Cyclic Prefix) is usually added before each OFDM symbol to eliminate inter-symbol interference caused by multipath of the signal. . Two CP lengths are defined in LTE: one is a normal CP and the other is an extended CP. When the OFDM symbol is added to the normal CP, the time slot of the subframe of the corresponding radio frame includes 7 OFDM symbols, and when the 0FDM symbol is added to the extended CP, the time slot of the subframe of the corresponding radio frame includes 6 0FDM symbols. In the prior art, the transmission method of the PBCH (Physical Broadcast Channel) is: Since the transmission interval of the existing PBCH is 40 ms, that is, one transmission period includes 4 radio frames, in the time domain, the base station will The PBCH data is divided into four segments on average, and is sequentially transmitted to the subframes corresponding to the four radio frames in one transmission period. For example, in the radio frames No. 1, No. 2, No. 3, and No. 4, in the time domain, the base station maps four data segments of the PBCH to the first slot of the 0th subframe in each radio frame. On the first 4 OFDM symbols of the carrier; in the frequency domain, the frequency domain length of the 6 PRBs (Physical Resource Blocks) occupying the center of the carrier, The mapping is performed in the order of the time domain after the frequency domain. It should be noted that one PRB occupies one time slot in the time domain and 12 subcarriers in the frequency domain. However, when the physical broadcast channel transmission is performed by the method in the prior art, the PBCH signal received by the user equipment located in the basement or the user equipment with a large link loss is attenuated, so the PBCH signal strength received by the user equipment is low. The communication quality is poor. SUMMARY OF THE INVENTION Embodiments of the present invention provide a physical broadcast channel transmission method, device, and system, which can improve the PBCH signal strength received by a user equipment, and improve communication quality.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, an embodiment of the present invention provides a physical broadcast channel PBCH transmission method, including:

PBCH data is divided into n PBCH data segments, where w = 2 said x is an integer greater than or equal to 0;

The m-th PBCH data segment is repeatedly mapped to the preset resource position in the preset PBCH by at least 2 times, l≤ ≤ M, and the preset PBCH is set with 2 radio frames, _y ≥; c.

In conjunction with the first possible implementation of the first aspect, the mapping, by the at least one repetition of the mth PBCH data segment, on the preset resource location in the preset PBCH includes: the mth PBCH The data segment is repeatedly mapped to the preset resource location of the mth radio frame in the preset PBCH at least twice. In conjunction with the second possible implementation of the first aspect, the x=y, the m-th PBCH data segment is at least 2 times repeatedly mapped to a pre-mth radio frame in the preset PBCH The location of the resource includes:

And mapping the mth PBCH data segment to a preset orthogonal frequency division multiplexing OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner, the m-th PBCH data segment is at least twice repeated in the preset PBCH in the mth The preset resource location of the wireless frame includes:

Segmenting the mth PBCH data in the mth radio frame in the preset PBCH At least two mappings are repeated on the preset OFDM symbols of each subframe in the number of sub-frames 9 to 9. In conjunction with the fourth possible implementation of the first aspect, the determining that the xth PBCH data segmentation is at least twice repeated in a preset resource location in the preset PBCH includes:

Mapping the mth PBCH data segment to a preset resource location of the mth radio frame in the preset PBCH;

Mapping the mth PBCH data segment to a preset resource location of the pth radio frame in the preset PBCH, where /? = +2^, the t is an integer, i≤t≤2 ^y — ^χ -ι.

In a second aspect, the embodiment of the present invention further provides a physical broadcast channel PBCH transmission method, including:

Receiving the mth PBCH data segment at least twice in the preset resource location in the preset PBCH, where the preset PBCH is configured with ^ radio frames;

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= ^2, the X is an integer greater than or equal to Q, l < m < n , y > X _o In conjunction with the first possible implementation of the second aspect, the _X =y, the repeating the at least two times of receiving the mth PBCH data segment on the preset resource location in the preset PBCH includes:

Receiving the mth PBCH data segment at least twice in a preset resource location of the mth radio frame in the preset PBCH.

In a second possible implementation manner of the second aspect, the receiving the mth PBCH data segment by repeating at least two times on the preset resource location of the mth radio frame in the preset PBCH includes:

And receiving the mth PBCH data segment on a preset orthogonal frequency division multiplexing OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH.

In a third possible implementation manner of the second aspect, the receiving the mth PBCH data segment by repeating at least two times on the preset resource location of the mth radio frame in the preset PBCH includes:

The mth PBCH data segment is repeatedly received at least twice on a preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. In conjunction with the fourth possible implementation of the second aspect, the receiving the mth PBCH data segment by repeating at least two times on the preset resource location in the preset PBCH includes:

Receiving, at the preset resource location of the mth radio frame in the preset PBCH, the mth PBCH data segment; receiving, at a preset resource location of the pth radio frame in the preset PBCH The mth PBCH data segment, the /^m + S x , the t is an integer, l ^≤ t ≤ 2 ^y — ^x - l.

In a third aspect, an embodiment of the present invention provides a base station, including:

a segmentation unit, configured to divide the PBCH data into n pieces of PBCH data segments, _η = 2 ^χ , where X is an integer greater than or equal to 0;

A first mapping unit, configured to PBCH m-th data segment is repeated at least 2 times the PBCH mapping preset default resource location, l≤ _m ≤ _n, the preset PBCH provided with two radio frames, y ≥ X.

In conjunction with the first possible implementation of the third aspect, when the value is x=y, the first mapping unit is further configured to:

And dividing the mth PBCH data segment by at least 2 repetitions on a preset resource location of the mth radio frame in the preset PBCH. In a second possible implementation manner of the third aspect, the base station further includes: a second mapping unit, configured to map the mth PBCH data segment to the mth wireless in the preset PBCH Pre-orthogonal frequency division multiplexing OFDM symbols for each subframe in subframes 0 through 9 in the frame. In a third possible implementation manner of the third aspect, the second mapping unit is further configured to:

And segmenting the mth PBCH data into at least one mapping on a preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. In conjunction with the fourth possible implementation of the third aspect, the first mapping unit is further configured to:

Mapping the mth PBCH data segment to the mth radio frame in the preset PBCH Preset resource location;

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

The first receiving unit is configured to receive the mth PBCH data segment at least twice in a preset resource location in the preset PBCH, where the preset PBCH is configured with ^ radio frames;

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= ^2, the X is an integer greater than or equal to Q, l ≤ m ≤ n, y > x _o In conjunction with the first possible implementation of the fourth aspect, when the value is x=y, the first receiving unit is further configured to:

Receiving the mth PBCH data segment at least twice in a preset resource location of the mth radio frame in the preset PBCH. In a second possible implementation manner of the fourth aspect, the user equipment further includes:

a second receiving unit, configured to receive the mth PBCH on a preset orthogonal frequency division multiplexing OFDM symbol of each subframe in subframes 0 to 9 in the mth radio frame in the preset PBCH Data segmentation. In a third possible implementation in combination with the fourth aspect, the second receiving unit is further configured to:

The mth PBCH data segment is repeatedly received at least twice on a preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. In a fourth possible implementation manner of the fourth aspect, the first receiving unit is further configured to:

Receiving, at the preset resource location of the mth radio frame in the preset PBCH, the mth PBCH data segment; receiving, at a preset resource location of the pth radio frame in the preset PBCH The mth PBCH data segment, the /^m + S x , the t is an integer, l ^≤ t ≤ 2 ^x -l.

In a fifth aspect, an embodiment of the present invention provides a physical broadcast channel transmission system, including: Any of the above described base stations;

And any of the user equipment described above.

In a sixth aspect, an embodiment of the present invention provides a physical broadcast channel transmission method, including: dividing PBCH data into n PBCH data segments, where w = 2, where x is an integer greater than 2;

The mth PBCH data segment is mapped to a preset resource location in the preset PBCH, l≤ ≤", and the preset PBCH is set with 2 radio frames, y = ;c.

The seventh aspect of the present invention further provides a physical broadcast channel transmission method, including:

Receiving, by the preset resource location in the preset PBCH, the mth PBCH data segment, where the preset PBCH is configured with 2 radio frames;

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= 2 ^X , the X is an integer greater than 2, l ≤ ≤", _{y = X o} According to an eighth aspect, an embodiment of the present invention provides a base station, including: a segmentation unit, configured to divide PBCH data into n PBCH data segments, where w=2, the X is an integer greater than 2;

The first mapping unit is configured to map the mth PBCH data segment to a preset resource location in the preset PBCH, where l≤m≤M, and the preset PBCH is configured with two radio frames, y=x. A ninth aspect, the embodiment of the present invention provides a user equipment, including:

a first receiving unit, configured to receive, on a preset resource location in the preset PBCH, a mth PBCH data segment, where the preset PBCH is configured with two radio frames;

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= 2 ^X , the X is an integer greater than 2, l ≤ ≤", _{y = X o} According to a tenth aspect, the embodiment of the present invention provides a physical broadcast channel transmission system, including: the base station according to the above eighth aspect; and the user equipment in the foregoing ninth aspect. Embodiments of the present invention provide a physical broadcast channel PBCH transmission method, device, and system The system includes: dividing the PBCH data into n pieces of PBCH data segments, where "= ² said x is an integer greater than or equal to 0; and precoding the mth PBCH data into at least 2 repetitions in a preset PBCH Set the resource location, l ≤ ≤", the preset PBCH is set with ² radio frames, y ^{≥ x} . In this way, in the embodiment of the present invention, the base station maps the mth PBCH data segment at least twice to the preset resource location in the preset PBCH, but in the prior art, the base station segments the mth PBCH data. Direct mapping of the mth radio frame in the preset PBCH

Compared with the prior art, the first four OFDM symbols of the slot 1 of the subframe No. 0,

The number of PBCH data segmentation mappings increases, and the PBCH signal strength received by the user equipment is enhanced, thereby improving communication quality.

Further, an embodiment of the present invention provides a physical broadcast channel transmission method, device, and system, including: dividing PBCH data into n PBCH data segments, where "= 2 said x is an integer greater than 2; The m PBCH data segments are mapped to preset resource positions in the preset PBCH, l ≤ m ≤ M, and the preset PBCH is set with 2 radio frames, y = x. In this way, in the embodiment of the present invention, the base station divides the PBCH data into n pieces of PBCH data segments, and the “= 2 the x is an integer greater than 2, and the data segment of the PBCH is added; and the mth PBCH data is divided. The segment mapping is in the preset resource location in the preset PBCH, 1 ≤ m ≤ M, and the preset PBCH is set with 2^ radio frames, which increases the length of the PBCH data segmentation mapping. In the prior art, the base station The PBCH data is divided into 4 data segments, and the 4 PBCH data segments are directly mapped on the first 4 OFDM symbols of the first slot of the 0th subframe of the 4 radio frames in the preset PBCH, the present invention Compared with the prior art, the number of PBCH data segments increases, and the length of the PBCH data segmentation map increases, which is received by the user equipment.

The probability of the PBCH signal increases, thus improving the communication quality.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of a PBCH resource mapping manner in the prior art;

2 is a flowchart of a method for transmitting a physical broadcast channel according to Embodiment 1 of the present invention; FIG. 3 is a schematic diagram of a PBCH resource mapping manner according to Embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of another PBCH resource mapping manner according to Embodiment 1 of the present invention; FIG. FIG. 5 is a schematic diagram of another PBCH resource mapping manner according to Embodiment 1 of the present invention; FIG. 6 is a schematic diagram of another PBCH resource mapping manner according to Embodiment 1 of the present invention; PBCH resource mapping mode diagram; FIG. 8 is a flowchart of another physical broadcast channel transmission method according to Embodiment 1 of the present invention;

9 is a block diagram of a base station according to Embodiment 2 of the present invention;

FIG. 10 is a block diagram of another base station according to Embodiment 2 of the present invention; FIG. 1 is a block diagram of a user equipment according to Embodiment 2 of the present invention;

FIG. 12 is a block diagram of another user equipment according to Embodiment 2 of the present invention;

FIG. 13 is a block diagram of a physical broadcast channel transmission system according to Embodiment 3 of the present invention; FIG. 14 is another block diagram of a base station according to Embodiment 3 of the present invention; FIG. User equipment block diagram;

Figure 16 is a flowchart of a physical broadcast channel transmission method according to Embodiment 4 of the present invention; Figure 17 is a PBCH resource mapping manner according to Embodiment 4 of the present invention; Another flow chart of a physical broadcast channel transmission method;

FIG. 19 is a block diagram of a base station according to Embodiment 5 of the present invention;

20 is a block diagram of a user equipment according to Embodiment 5 of the present invention;

FIG. 21 is a schematic diagram of a physical broadcast channel transmission system according to Embodiment 5 of the present invention; FIG. 11 is a block diagram of another base station according to Embodiment 5 of the present invention;

FIG. 2 is a block diagram of another user equipment according to Embodiment 5 of the present invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. General techniques in the art based on embodiments in the present invention All other embodiments obtained by a person without creative efforts are within the scope of the present invention.

In the prior art, the PBCH data is subjected to resource mapping after being processed by scrambling, layer mapping, and precoding. The resource mapping manner is as shown in FIG. 1 , because the transmission interval of the existing PBCH is 40 ms, that is, one transmission period includes 4 radio frames, so in the time domain, the base station divides the PBCH data into 4 data segments, which are respectively the first PBCH data segment A, the second PBCH data segment B, and the third PBCH data segment. C and the 4th PBCH data segment D, the 4 data segments occupy the frequency domain length of the 6 PRBs in the carrier center in the frequency domain, where the carrier center refers to the center frequency point position of the carrier, and the 4 The specific mapping manner of the data segments in the frequency domain is as follows: from the frequency point position of the carrier center to the two-side position mapping of the carrier center, for example, in the embodiment of the present invention, there are six PRBs, and the mapping starts from the frequency position of the carrier center. Map 3 PRBs up and map 3 PRBs down. When the resource mapping is performed, the four data segments are sequentially mapped in the order of the first frequency domain and the time domain, and the resource location occupied by the cell reference signal is to be avoided. The cell reference signal includes: CRS (Cell Reference Signal, Cell reference signal), PSS (Pr imary Synchronization Signal) and SSS (Secondary Synchronization S i gna 1).

The base station maps the first PBCH data segmentation to the first four OFDM symbols of the first slot of the 0th subframe of the first radio frame 10, and maps the second PBCH data segment B to the second. On the first 4 OFDM symbols of slot 1 of subframe 0 of radio frame 20, the third PBCH data segment C is mapped to the slot 1 of subframe 0 of the third radio frame 30. On the 4 OFDM symbols, the 4th PBCH data segment D is mapped to the first 4 OFDM symbols of the 1st slot of the 0th subframe of the 4th radio frame 40. It should be noted that FIG. 1 is an example of a resource mapping manner in the frequency domain of the first radio frame, which is the length of one PRB frequency domain in the frequency domain of the 0th subframe, and the area N in the time domain is 1 subframe. The two PBs, the base station maps the first PBCH data segment A to the first four OFDM symbols 1011a of the first slot 1011 of the 0th subframe 101 of the first radio frame 10, and the second PBCH data. The resource mapping manner of the segment B, the third PBCH data segment C, and the fourth PBCH data segment D in the corresponding region is the same as the resource mapping manner of the first PBCH data segment A in the region N, where Let me repeat. In particular, a line a represents a carrier center, a vertical stripe area in area N is represented as a PBCH data segment mapped on the PBCH, and a black area is a CRS in a 0-subframe 101 structure. The first column of diagonal stripes represents PSS and the second column of diagonal stripes represents SSS.

It should be noted that the present invention is an ordinary CP before the OFDM symbol in the embodiment, that is, the slot of the subframe of the corresponding radio frame includes 7 OFDM symbols. Embodiment 1 The embodiment of the present invention provides a physical broadcast channel transmission method, which is related to a base station side, as shown in FIG. 2, and includes:

201. The base station divides the PBCH data into n PBCH data segments, where the w=2 is an integer greater than or equal to 0.

202, the base station PBCH m-th data segment is repeated at least twice in a predetermined resource location mapped preset on the PBCH, l≤ _m ≤n. The preset PBCH is set with 2 radio frames, where _y ≥ x. The preset PBCH provided by the embodiment of the present invention may be the same as the prior art, that is, the preset PBCH includes 4 radio frames, y=2; and may be different from the prior art, for example, the preset PBCH includes 8 radio frames. y=3. In the prior art, the base station directly maps the mth PBCH data segment to the first four OFDM symbols of the first slot of the 0th subframe of the mth radio frame in the preset PBCH, but in the embodiment of the present invention, The base station maps the mth PBCH data to the preset resource location in the preset PBCH at least twice. Compared with the prior art, the mapping times of the PBCH data segment are increased, and the PBCH signal strength received by the user equipment is increased. Enhanced, thus improving communication quality.

Each radio frame includes a total of 10 subframes from 0 to 9 subframes. When x=y, that is, when the number of PBCH data segments divided into PBCH data is equal to the number of radio frames of the preset PBCH, the base station The mth PBCH data segment may be repeatedly mapped to the preset resource location of the mth radio frame in the preset PBCH by at least 2 times. Specifically, the base station may map the mth PBCH data segment to a preset OFDM symbol of any two or more subframes in the 0th to the 9th subframes of the mth radio frame in the preset PBCH, where In particular, the base station may map the mth PBCH data segment to a preset OFDM symbol of each subframe in the subframes Q to 9 of the mth radio frame in the preset PBCH, that is, the The PBCH data segment has a corresponding relationship with the radio frame in the preset PBCH. For example, assume x=2, that is, the preset PBCH includes 4 radio frames, and the PBCH data is divided into 4 PBCH data segments. As shown in FIG. 3, the preset OFDM symbol may be the first four OFDM symbols of the first slot of the 0th subframe in each radio frame in the preset PBCH. As shown in FIG. 4, the preset OFDM symbol may also be a preset. The last 2 OFDM symbols of the 0th slot of the 0th subframe and the first 2 OFDM symbols of the 1st slot in each radio frame in the PBCH. In particular, FIG. 3 and FIG. 4 are examples of the resource mapping manner in the frequency domain of the 0th subframe in the first radio frame, which is the length of one PRB frequency domain in the frequency domain, and the area N in the time domain is one subframe. N includes 2 PRBs. As an example, in FIG. 3, the base station repeatedly maps the first PBCH data segment A to the first 4 OFDM symbols of the 1st slot 1011 of the 0th subframe 101 of the 1st radio frame 10. On 1011a, the second PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D are mapped in the corresponding region with the first PBCH data segment A in the region. The mapping of resources in N is the same, and is not described here.

In FIG. 4, for example, the base station repeatedly maps the first PBCH data segment A to the last two OFDM symbols 1011a and 1 of the 0th slot 1011 of the 0th subframe 101 of the first radio frame 10. On the first two OFDM symbols 1012a of 1012, the resource mapping manner of the second PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D in the corresponding region is the same as the first one. The resource mapping mode of the PBCH data segment A in the area N is the same, and is not described here.

It should be noted that the position of the preset 0 FDM symbol of each subframe in the subframes 0 to 9 in each radio frame in the preset PBCH may be different, and the setting of the location is determined by the specific application, for example, The first PBCH data segment may be mapped on the first four OFDM symbols of the first slot of each of the subframes 0 to 9 in the first radio frame of the preset PBCH, and the second The PBCH data segment may be mapped to the last two OFDM symbols of the 0th slot of each subframe in the 0th to 9th subframes of the 2nd radio frame in the preset PBCH and the first 2 slots of the 1st slot On the OFDM symbol. In particular, in the actual application, the first 4 OFDM symbols of the 0th slot of each subframe of the preset PBCH may be occupied by signals of other non-PBCH data, and the PDCCH (Physical Downlink Control Channe 1 ) Therefore, the preset resource location may not include the first 4 OFDM symbols of the 0th slot of each subframe, but the first 4 OFDM symbols of the 0th slot of each subframe of the preset PBCH are not otherwise When the signal of the PBCH data is occupied, the preset resource location may also include the first 4 OFDM symbols of the 0th slot of each subframe, and any person skilled in the art may easily within the technical scope disclosed by the present invention. The present invention is not described in detail for the sake of change or replacement.

In particular, the position of the preset OFDM symbol is set to be as close as possible to the CRS bit. Therefore, the demodulation of the PBCH data can be facilitated, and the demodulation refers to identifying the transmitted data segments in the noisy channel.

Further, each PBCH data segment may be repeatedly mapped in a subframe of the same radio frame, that is, the mth PBCH data may be segmented in the mth radio frame of the preset PBCH to The preset OFDM symbols of each subframe in the subframe 9 are repeatedly mapped at least twice. In this way, the number of mappings of PBCH data segments can be further improved. Correspondingly, the PBCH signal strength received by the user equipment is enhanced, thereby improving communication quality. Assume that x = 2, that is, the preset PBCH includes 4 radio frames, and the PBCH data is divided into 4 PBCH data segments. As shown in FIG. 5, in the embodiment of the present invention, taking the third PBCH data segment as an example, that is, m=3, the base station may map the third PBCH data segment C to the first PBCH for the first time. On the preset OFDM symbol 5011a of each of the subframes 0 to 9 of the 3 radio frames 30, the preset OFDM symbol 5011a is the first 4 OFDM symbols of the slot 1 of each subframe, and the The second PBCH data segment C is repeatedly mapped to the preset OFDM symbol 5011b of each subframe in the 0th to 9th subframes of the 3rd radio frame 30 in the preset PBCH, the preset OFDM. The symbol 5011b is the last 3 OFDM symbols of the 0th slot of each subframe and the 5th OFDM symbol of the 1st slot.

As shown in FIG. 6, the embodiment of the present invention still takes the third PBCH data segment as an example, that is, m=3, the base station may map the third PBCH data segment C to the preset PBCH for the first time. On the preset OFDM symbol 6011a of each of the subframes 0 to 9 in the 3rd radio frame 30, the preset OFDM symbol 6011a is the last OFDM symbol and the 1st slot of the 0th slot of each subframe. The first two OFDM symbols of the time slot, the second PBCH data segment C is repeatedly mapped to each of the subframes 0 to 9 of the third radio frame 30 in the preset PBCH. On the preset OFDM symbol 6011b, the preset OFDM symbol 6011b is the 5th OFDM symbol of the 0th slot of each subframe and the 3rd to 5th OFDM symbols of the 1st slot. In particular, FIG. 5 and FIG. 6 are examples of the resource mapping manner in the frequency domain of the No. 0 subframe in the third radio frame, which is the length of one PRB frequency domain in the frequency domain, and the area N in the time domain is one subframe. N includes 2 PRBs.

Further, when the x<;, the number of data segments of the PBCH is smaller than the number of radio frames in the preset PBCH, the PBCH transmission method includes: mapping the mth PBCH data segment to a preset PBCH And mapping the mth PBCH data segment to a preset resource location of the pth radio frame in the preset PBCH, where the mth radio frame is in a preset resource location; Description

The t is an integer, i ^≤ t ≤ 2 ^y — ^χ -ι. That is, the same data segment can be mapped in different radio frames.

For example, if the PBCH data is divided into 4 PBCH data segments, that is, x=2, the preset PBCH includes 8 radio frames, that is, y=3. And mapping the mth PBCH data segment to a preset resource location of the mth radio frame in the preset PBCH; and mapping the mth PBCH data segment to the m+4 in the preset PBCH The preset resource location of the radio frames. That is, the mth PBCH data segment can be simultaneously mapped on the preset resource location of the mth radio frame and the preset resource location of the m+4th radio frame to form at least 2 mappings.

The structure of the PBCH includes four radio frames, that is, y=2, and the transmission time interval of the PBCH is 40 ms, that is, one transmission period includes four radio frames. In the embodiment of the present invention, the base station can define a mapping for PBCH data mapping. The long period, that is, the number of radio frames in the preset PBCH is greater than 4, j >3. Correspondingly, the transmission time interval of the preset PBCH is (40x2 - ^ms, if y=3, the preset PBCH The transmission time interval is 80 ms, that is, one transmission period includes 8 radio frames. It should be noted that if a transmission period of the preset PBCH includes a radio frame, the MIB (Master Information Block) carried by the preset PBCH The SFN (System Frame Number) included in the prior art is the high (π) bit of the SFN carried in the PBCH in the prior art, and the extra bits are y bits, and the extra bits can be completely filled with the known bits. The bits, such as all 0s, or default to idle bits, contain both downlink bandwidth indication information (3 bits) and may also contain PHICH channel configuration information (3 bits) and idle bits. If a transmission period of the preset PBCH includes eight radio frames, the SFN (System Frame Number) included in the MIB (Master Information Block) carried by the preset PBCH is a PBCH in the prior art. The high (8-3) bits of the SFN carried in the middle, that is, 5 bits, and the extra bits are 3 bits, and the extra bits can be completely filled with known bits, such as all 0s, or the default is idle bits, and Contains downlink bandwidth indication information (3 bits), and may also include PHICH channel configuration information (3 bits) and idle bits.

If the PBCH data is divided into 4 PBCH data segments, that is, x=2, and the preset PBCH includes 8 radio frames, that is, y=3, this period is twice the period of the PBCH data mapping manner in the prior art, and As shown in FIG. 7, the corresponding PBCH data segment is repeatedly transmitted on the slot 1 of each subframe in the 0th to the 9th subframes of the 8 radio frames, so that the user equipment that needs to be enhanced is needed. Define new channels and new resource locations, user devices follow new The resource mapping manner receives PBCH channel information. The provision of predefined resource locations for transmitting PBCH data segments is added within each radio frame, providing scheduling flexibility and resource usage efficiency over the prior art.

As shown in FIG. 7, the base station divides the PBCH data into four data segments, which are the first PBCH data segment A, the second PBCH data segment B, the third PBCH data segment C, and the fourth. PBCH data segment D, the base station simultaneously maps the first PBCH data segment A to the first 4 OFDM symbols of the 1st slot of the 0th subframe of the 1st radio frame and the 0th of the 5th radio frame On the first 4 OFDM symbols of slot 1 of the subframe, the second PBCH data segment B is mapped to the first 4 OFDM symbols of the slot 1 of the 0th subframe of the second radio frame, and the first Mapping the 3rd PBCH data segment C to the first 4 OFDM symbols of the 0th subframe of the 0th radio frame, and mapping the 3rd PBCH data segment C to the 1st time slot of the 0th subframe of the 3rd radio frame Mapping the 4th PBCH data segment D to the 0th subframe of the 4th radio frame on the 4 OFDM symbols and the first 4 OFDM symbols of the slot 1 of the 0th subframe of the 7th radio frame On the first 4 OFDM symbols of the 1st time slot and the first 4 OFDM symbols of the 1st time slot of the 0th subframe of the 8th radio frame, for example, in FIG. 7, the base station will The first PBCH data segment A is mapped to the first four OFDM symbols 1 01 1 a of the first time slot 1 0 1 1 of the 0th subframe 01 of the first radio frame 10, the same as the second The resource mapping manner of the PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D in the corresponding region is the same as the resource mapping manner of the first PBCH data segment A in the region N, I won't go into details here.

As shown in FIG. 7, in this embodiment, the transmission time interval of the preset PBCH is 8 Oms, that is, one transmission period of the preset PBCH includes 8 radio frames as an example, and the rate matching is mapped in consecutive 8 radio frames. Rate matching is performed on the number of resources available on the predefined resource. The rate matching refers to comparing the number of transmitted symbols with the number of available resource units, so that the number of transmitted symbols matches the number of available resource units. For example, if the number of available resource units is 1 0 and the number of symbols sent is 5, then each symbol is sent twice to fill all available resources. If the number of available resources is 5 and the number of symbols to be transmitted is 1 0, every 1 symbol is mapped to the available resources, which is equivalent to only 5 symbols, and 5 symbols are not transmitted. The symbol is PBCH data. The modulation symbol, the available resource unit is an OFDM symbol in the time domain, and a resource block corresponding to one subcarrier in the frequency domain, so that 8 PBCHs are sent on the predefined resource in a period of 80 ms. Data segmentation, the scrambling code of the data corresponding to each data segment is different. Each data segment can be self-decoded. That is, as long as the user equipment can detect a PBCH data segment with a certain probability, all the original information ratios carried on the PBCH can be obtained by the data segmentation. Specifically, if the user equipment detects a PBCH data segment, if the signal quality is good enough, and no other PBCH data segments are received, all the useful information can be obtained, so the PBCH signal strength received by the user equipment is enhanced, and the signal strength is improved. Communication quality.

In particular, the base station may map the mth PBCH data segment by at least 2 times in a preset resource position of the mth radio frame in the preset PBCH, and at least 2 times repeatedly map the qth radio in the preset PBCH. Specifically, the base station may map the mth PBCH data segment to a preamble of each of the Qth to 9th subframes in the qth radio frame in the preset PBCH. Set on the OFDM symbol. Refer to FIG. 3 and FIG. 4 for the specific mapping manner of each PBCH data segment in the corresponding radio frame, which is not detailed in this embodiment.

Further, each PBCH data segment may be repeatedly mapped in a subframe of the same radio frame, that is, the mth PBCH data segment may be repeatedly mapped to the mth wireless in the preset PBCH at least twice. On the preset OFDM symbol of each subframe in the subframes 1 to 9 in the frame, the m-th PBCH data segment is simultaneously mapped at least twice in the qth radio frame in the preset PBCH. Number to the preset OFDM symbol of each subframe in subframe 9. Refer to FIG. 5 and FIG. 6 for the specific mapping manner of each PBCH data segment in the corresponding radio frame, which is not described in detail in this embodiment. The embodiment of the present invention provides a physical broadcast channel transmission method, which is related to the user equipment side, and includes:

Receiving the mth PBCH data segment at least once in a preset resource position of the mth radio frame in the preset PBCH, where the preset PBCH is configured with ^ radio frames; wherein, the mth PBCH data The segment is any one of the n PBCH data segments into which the PBCH data is divided, η = 2 ^χ , the X is an integer greater than or equal to 0, l ≤ m ≤ ", y > x _{o in the} prior art, the user equipment The m-th PBCH data segment is directly received on the preset resource location of the mth radio frame in the preset PBCH, and the user equipment is in the preset resource location of the mth radio frame in the preset PBCH in the embodiment of the present invention. The mth PBCH data segment is received at least twice, and the PBCH signal strength received by the user equipment is enhanced compared with the prior art, thereby improving communication quality.

Since each radio frame includes a total of 10 subframes from 0 to 9 subframes, when x=y, that is, the number of PBCH data segments into which the PBCH data is divided is equal to the number of radio frames of the preset PBCH, the user equipment The preset resource location of the mth radio frame in the preset PBCH may be The mth PBCH data segment is received at least twice. Specifically, the user equipment may receive the mth PBCH data segment on a preset OFDM symbol of any two or more subframes in the 0th to the 9th subframes in the mth radio frame in the preset PBCH, where In particular, the user equipment may receive the mth PBCH data segment, that is, the user equipment, on a preset OFDM symbol of each subframe in the 0th to the 9th subframes in the mth radio frame in the preset PBCH. The assumed hypothesis x=2, that is, the preset PBCH includes 4 radio frames, and the PBCH data is divided into 4 PBCH data segments. As shown in FIG. 3, the preset OFDM symbol may be the first four OFDM symbols of the first slot of the 0th subframe in each radio frame in the preset PBCH. As shown in FIG. 4, the preset OFDM symbol may also be the last 2 OFDM symbols of the 0th slot of the 0th subframe and the first 2 OFDM symbols of the 1st slot in each radio frame in the preset PBCH. . In particular, FIG. 3 and FIG. 4 are examples of the resource mapping manner in the frequency domain of the 0th subframe in the first radio frame, which is the length of one PRB frequency domain in the frequency domain, and the area N in the time domain is one subframe. N includes 2 PRBs. In FIG. 3, for example, the user equipment receives the first PBCH data segment on the first 4 OFDM symbols 1011a of slot 1 1011 of subframe 0 of the first radio frame 10. A, the same user equipment receives the second PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D in the corresponding region and receives the first PBCH in the region N. The data segment A is in the same way and will not be described here.

As shown in FIG. 4, the user equipment can receive on the last two OFDM symbols 1011a of the 0th slot 1011 of the 0th subframe 101 of the first radio frame 10 and the first 2 OFDM symbols 1012a of the 1st slot 1012. The first PBCH data segment A, in the same region, receives the second PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D in the corresponding region and in the region N. The receiving manner of the first PBCH data segment A is the same, and will not be described here.

It should be noted that the position of the preset 0 FDM symbol of each subframe in the subframes 0 to 9 in each radio frame in the preset PBCH may be different, and the setting of the location is determined by the specific application, for example, The user equipment may receive the first PBCH data segment on the first four OFDM symbols of the first slot of each subframe in the subframes 0 to 9 in the first radio frame in the preset PBCH. The second PBCH is received on the last 2 OFDM symbols of the 0th slot of each subframe in the 0th to 9th subframes in the 2nd radio frame in the preset PBCH and the first 2 OFDM symbols of the 1st slot Data segmentation. Anyone skilled in the art will be aware of Variations or substitutions are readily conceivable within the technical scope of the present disclosure, and thus the present invention will not be described in detail.

In particular, the position of the above preset OFDM symbol can be set as close as possible to the CRS, which can facilitate demodulation of PBCH data. Further, the user equipment may also repeatedly receive the PBCH data segments in the subframe of the same radio frame, that is, each of the 0th to the 9th subframes in the mth radio frame in the preset PBCH. The mth PBCH data segment is repeatedly received at least twice on the preset OFDM symbols of the subframes. Assume that x=2, that is, the preset PBCH includes 4 radio frames, and the PBCH data is divided into 4 PBCH data segments. As shown in FIG. 5, in the embodiment of the present invention, the third PBCH data segment is taken as an example, that is, m=3, the user equipment may be in the third radio frame 30 of the preset PBCH. The third PBCH data segment C is received for the first time on the preset OFDM symbol 5011a of each subframe in the frame, and the preset OFDM symbol 5011a is the first four OFDM symbols of the slot 1 of each subframe. Receiving, by the first time, the third PBCH data segment C, the preset OFDM symbol, on the preset OFDM symbol 5011b of each of the subframes 0 to 9 in the third radio frame 30 in the preset PBCH. 5011b is the last 3 OFDM symbols of slot 0 of each subframe and the 5th OFDM symbol of slot 1.

As shown in FIG. 6 , in the embodiment of the present invention, the third PBCH data segment is taken as an example, that is, m=3, and the user equipment may be in the third radio frame 30 of the preset PBCH. The third PBCH data segment C is received for the first time on the preset OFDM symbol 6011a of each subframe in the subframe, and the preset OFDM symbol 6011a is the last 2 OFDM symbols and the 1st slot of the 0th slot of each subframe. The first two OFDM symbols of the time slot are repeatedly received on the first OFDM symbol 6011b of each subframe in the subframes 0 to 9 of the third radio frame 30 in the preset PBCH. The PBCH data segment C, the preset OFDM symbol 6011b is the 5th OFDM symbol of the 0th slot of each subframe and the 3rd to 5th OFDM symbols of the 1st slot. In particular, FIG. 5 and FIG. 6 are examples of the resource mapping manner in the frequency domain of the 0th subframe in the third radio frame, which is the length of one PRB frequency domain in the frequency domain, and the area N in the time domain. N includes 2 PRBs.

Further, when the x<;, the number of data segments of the PBCH is smaller than the number of radio frames in the preset PBCH, the PBCH transmission method includes: the mth radio frame in the preset PBCH Receiving the mth PBCH data segment on a preset resource location; receiving the mth PBCH data segment on a preset resource location of the pth radio frame in the preset PBCH Segment, the /? = +2 " The t is an integer, i ^≤ t ≤ 2 ^y - ^χ -ι. That is, the same data segment can be received in different radio frames.

For example, if the PBCH data is divided into 4 PBCH data segments, that is, x=2, the preset PBCH includes 8 radio frames, that is, y=3. Receiving, by the preset resource location of the mth radio frame in the preset PBCH, the mth PBCH data segment; and receiving, at the preset resource location of the m+4th radio frame in the preset PBCH m PBCH data segments. That is, the user equipment can simultaneously receive the mth PBCH data segment on the preset resource location of the mth radio frame and the preset resource location of the m+4th radio frame.

As shown in FIG. 7, the base station divides the PBCH data into four data segments, which are the first PBCH data segment A, the second PBCH data segment B, the third PBCH data segment C, and the fourth. PBCH data segment D, the user equipment is on the first 4 OFDM symbols of slot 1 of subframe 0 of the first radio frame and the first 4 slots of slot 1 of subframe 0 of the fifth radio frame Simultaneously receiving the first PBCH data segment A on the OFDM symbols, on the first 4 OFDM symbols of the 1st slot of the 0th subframe of the 2nd radio frame and the 0th subframe of the 6th radio frame The second PBCH data segment B is simultaneously received on the first 4 OFDM symbols of slot 1, and the first 4 OFDM symbols and the 7th radio in slot 1 of the 0th subframe of the 3rd radio frame. The third PBCH data segment C is simultaneously received on the first 4 OFDM symbols of slot 1 of the 0th subframe of the frame, and the first 4 OFDM slots of slot 1 of the 0th subframe of the 4th radio frame The fourth PBCH data segment D is simultaneously received on the first 4 OFDM symbols of the slot 1 of the 0th subframe of the 8th radio frame, for example, in FIG. 7, The user equipment receives the first PBCH data segment A on the first 4 OFDM symbols 01 1 a of slot 1 01 1 of the 0th subframe 01 of the first radio frame 10, the same as the first The two PBCH data segments B, the third PBCH data segment C, and the fourth PBCH data segment D are received in the corresponding region in the same manner as the first PBCH data segment A in the region N. I won't go into details here.

In particular, the user equipment may repeatedly receive the mth PBCH data segment at least twice in the preset resource location of the mth radio frame in the preset PBCH, and preset resources of the qth radio frame in the preset PBCH. The m-th PBCH data segment is repeatedly received at least twice in the location. Specifically, the user equipment may preset the OFDM symbol of each subframe in the 0th to the 9th subframes in the qth radio frame in the preset PBCH. Receiving the mth PBCH data segment. For the specific receiving manner of each PBCH data segment in the corresponding radio frame, reference may be made to FIG. 3 and FIG. 4, which is not described in detail in this embodiment. Further, the user equipment may also repeat each of the subframes in the same radio frame.

Receiving the PBCH data segment, that is, the mth PBCH may be received at least twice on the preset OFDM symbol of each subframe in the 0th to the 9th subframes in the mth radio frame in the preset PBCH. And segmenting the data, and simultaneously receiving the mth PBCH data segment at least twice on the preset OFDM symbols of each of the subframes 1 to 9 in the dth radio frame in the preset PBCH. The specific receiving manner of each PBCH data segment in the corresponding radio frame can be referred to FIG. 5 and FIG. 6, which will not be described in detail in this embodiment. It should be noted that the physical broadcast channel transmission method of the base station and the physical broadcast channel transmission method of the user equipment provided by the embodiment of the present invention are corresponding to each other, that is, the base station performs the PBCH data resource in the preset resource location in the preset PBCH. Mapping, the user equipment performs corresponding PBCH data reception at the preset resource location. In particular, the user equipment may detect the transmitted PBCH data segment according to its detection performance, and determine the number of times the PBCH data segment is received. .

By way of example, the present invention assumes x = 2, i.e., the preset PBCH includes 4 radio frames, and the PBCH data is divided into 4 PBCH data segments. An embodiment of the present invention further provides a physical broadcast channel transmission method, as shown in FIG. 8, including:

8 01. The base station divides the PBCH data into 4 PBCH data segments.

8 02. The base station maps the mth PBCH data segment by at least two times in a preset resource position of the mth radio frame in the preset PBCH, where l≤m≤4.

Assuming m=l, 2, 3, 4, as shown in FIG. 3, the base station segments the first PBCH data A, the second data segment B, the third data segment C, and the fourth data segment. D repeats mapping on a preset OFDM symbol of each of the subframes 0 to 9 of the 4 radio frames in the preset PBCH. As shown in FIG. 3, the preset OFDM symbol may be the first 4 OFDM symbols of the first slot of the 0th subframe in each radio frame in the preset PBCH. Similarly, the resource mapping manner of the second PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D in the corresponding region is the same as the first PBCH data segment A in the region N. The resource mapping is the same and will not be described here.

8 03. The user equipment receives the mth PBCH data segment at least twice in the preset resource location of the mth radio frame in the preset PBCH.

Where m is 1, 2, 3, and 4, respectively, as shown in FIG. 3, the user equipment is in the preset PBCH Repeated reception on the preset OFDM symbols of each of the subframes 0 to 9 in the 4 radio frames, the first PBCH data segment A, the second data segment B, and the third data segment C And the 4th data segment D. As shown in FIG. 3, the preset OFDM symbol may be the first four OFDM symbols of the slot 1 of the subframe No. 0 in each radio frame in the preset PBCH. Similarly, the second PBCH data segment B, the third PBCH data segment C, and the fourth PBCH data segment D are received in the corresponding region and the first PBCH data segment A is in the region N. The receiving method is the same, and will not be described here.

Specifically, when the user equipment performs the PBCH data segmentation in the preset PBCH, the SFN in the MIB needs to be demodulated to determine the frame number, and the first 8 subframes in each radio frame of the preset PBCH are used in the MIB. The SFN determines and then demodulates the last 2 subframes. When the preset PBCH includes 4 radio frames, 2 bits can be used to identify the MIB. When the preset PBCH includes 8 radio frames, 3 bits can be used to identify the MIB. It should be noted that the signal mapping positions of CRS, PSS, and SSS in each radio frame in the preset PBCH in the embodiment of the present invention are set according to a common mapping position, and the parts provided in the embodiments of the present invention are not labeled. No longer detailed.

In the prior art, the base station directly maps the mth PBCH data segment to the first four OFDM symbols of the first slot of the 0th subframe of the mth radio frame in the preset PBCH, but the embodiment of the present invention The mid-base station maps the m-th PBCH data segmentation to the preset resource location in the preset PBCH at least twice. Compared with the prior art, the PBCH data segmentation mapping times are increased, and the PBCH signal received by the user equipment is increased. The strength is enhanced, thus improving the communication quality. Example 2:

The embodiment of the present invention provides a base station 90, as shown in FIG. 9, including:

The segmentation unit 901 is configured to divide the PBCH data into n pieces of PBCH data segments, _n = 2 ^x , and the X is an integer greater than or equal to 0.

The first mapping unit 902, PBCH for the m-th data segment is repeated at least 2 times the PBCH mapping preset default resource location, l≤ _m ≤ _n, the PBCH is provided with predetermined radio frames, y

The first mapping unit 902 is further configured to map the mth PBCH data segment to the preset resource location of the mth radio frame in the preset PBCH at least twice. The first mapping unit is further configured to:

And mapping the mth PBCH data segment to a preset resource location of the mth radio frame in the preset PBCH.

As shown in FIG. 10, the base station 90 further includes: a second mapping unit 903, configured to map the mth PBCH data segment to the 0th to the 9th in the mth radio frame in the preset PBCH Pre-orthogonal frequency division multiplexing OFDM symbols for each subframe in the subframe.

The second mapping unit 903 is further configured to segment the mth PBCH data on at least a preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. Repeat the mapping twice.

In the prior art, the base station directly maps the mth PBCH data segment to the first four OFDM symbols of the first slot of the 0th subframe of the mth radio frame in the preset PBCH, but the embodiment of the present invention The first mapping unit maps the mth PBCH data segment to the preset resource location in the preset PBCH at least twice. Compared with the prior art, the number of mappings of the PBCH data segment increases, and the user equipment receives The PBCH signal strength is enhanced, thus improving the communication quality.

The embodiment of the present invention provides a user equipment 100. As shown in FIG. 11, the method includes: a first receiving unit 1001, configured to receive the mth PBCH data point at least twice in a preset resource location in a preset PBCH. a segment, the preset PBCH is configured with ^2y radio frames, where the mth PBCH data segment is any one of n PBCH data segments into which PBCH data is divided, and η = 2 ^χ , where X is An integer of greater than or equal to 0, l ≤ m ≤ ", y > ^ _{o The} first receiving unit 1001 is further configured to repeat at least one receiving location on a preset resource location of the mth radio frame in the preset PBCH The mth PBCH data segmentation.

The first receiving unit 1001 is further configured to:

Receiving the mth PBCH data segment on a preset resource location of the mth radio frame in the preset PBCH. Receiving the mth at a preset resource location of the pth radio frame in the preset PBCH Pieces of PBCH data, the /^m + S x , the t is an integer, l ^≤ t ≤ 2 ^x -l.

As shown in FIG. 12, the illustrated user equipment 100 further includes:

The second receiving unit 1002 is configured to receive, on the preset orthogonal frequency division multiplexing OFDM symbol of each subframe in the subframes 0 to 9 of the mth radio frame in the preset PBCH, the mth PBCH data segmentation.

The second receiving unit 1002 is further configured to repeatedly receive the mth PBCH at least one time on a preset OFDM symbol of each subframe in the 0th to the 9th subframes in the mth radio frame in the preset PBCH. Data segmentation. In the prior art, the user equipment directly receives the mth PBCH data segment in the preset resource location of the mth radio frame in the preset PBCH, and in the embodiment of the present invention, the first receiving unit is the mth in the preset PBCH. The mth PBCH data segment is received at least twice in the preset resource location of the radio frame. Compared with the prior art, the PBCH signal strength received by the user equipment is enhanced, thereby improving the communication quality.

Example 3:

The embodiment of the present invention provides a physical broadcast channel transmission system 200, as shown in FIG. 13, including:

Any of the above described base stations 90.

User equipment 100 as described above. It should be noted that the user equipment in the system may also be a common user equipment. In particular, the physical broadcast channel transmission system may have at least two preset PBCHs, and the lengths of the at least two preset PBCHs may be different. For example, the preset PBCH and the length of 4 radio frames may exist in the system. A preset PBCH of 8 radio frames in length. In the prior art, the base station directly maps the mth PBCH data segment to the first four OFDM symbols of the first slot of the 0th subframe of the mth radio frame in the preset PBCH, but the embodiment of the present invention The mid-base station maps the m-th PBCH data segmentation to the preset resource location in the preset PBCH at least twice. Compared with the prior art, the PBCH data segmentation mapping times are increased, and the PBCH signal received by the user equipment is increased. The strength is enhanced, thus improving the communication quality.

The embodiment of the present invention provides a base station 300, as shown in FIG. 14, comprising: a processor 3001, configured to divide PBCH data into n PBCH data segments, _η = 2 ^χ , The processor 3001 is further configured to PBCH m-th data segment is repeated at least 2 times the PBCH mapping preset default resource location, l≤ _m ≤ _n, the preset PBCH provided with two radio frames, y ≥ X.

The processor 3001 is further configured to map the mth PBCH data segment by at least 2 times to a preset resource location of the mth radio frame in the preset PBCH.

The processor 3001 is further configured to map the mth PBCH data segment to a preset orthogonal frequency division of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. Use the OFDM symbol.

The processor 3001 further segments the mth PBCH data segment at least twice on the preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. .

The processor 3001 also maps the mth PBCH data segment to a preset resource location of the mth radio frame in the preset PBCH. Mapping the mth PBCH data segment to a preset resource location of the pth radio frame in the preset PBCH, where /? = +2, where t is an integer, i ^≤ t ≤ 2 ^y - ^χ -ι.

In the prior art, the base station directly maps the mth PBCH data segment to the first four OFDM symbols of the first slot of the 0th subframe of the mth radio frame in the preset PBCH, but the embodiment of the present invention The medium processor maps the mth PBCH data to the preset resource location in the preset PBCH at least twice, and the number of mappings of the PBCH data segment is increased compared with the prior art, and the PBCH received by the user equipment is increased. The signal strength is enhanced, thus improving the communication quality.

The embodiment of the present invention provides a user equipment 400, as shown in FIG. 15, including: a receiver 4001, configured to receive the mth PBCH data segment at least twice in a preset resource location in a preset PBCH. The preset PBCH is provided with ^ radio frames.

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= ^2, the X is an integer greater than or equal to 0, l < m < n , y > X _o The receiver 4001 is further configured to receive the mth PBCH data segment at least twice in a preset resource location of the mth radio frame in the preset PBCH.

The receiver 4001 is further configured to use the 0th to the 9th in the mth radio frame in the preset PBCH. The mth PBCH data segment is received on a preset orthogonal frequency division multiplexing OFDM symbol of each subframe in the number subframe. The receiver 410 is further configured to repeatedly receive the mth PBCH at least twice on a preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH. Data segmentation.

The receiver 4 001 is further configured to receive the mth PBCH data segment on a preset resource location of the mth radio frame in the preset PBCH.

Receiving, in the preset resource location of the pth radio frame in the preset PBCH, the mth PBCH data segment, the /^m+Sx, the t is an integer, l≤t≤2 ^y — ^x -l.

In the prior art, the user equipment directly receives the mth PBCH data segment in the preset resource location of the mth radio frame in the preset PBCH, and the receiver in the preset PBCH is the mth wireless in the embodiment of the present invention. The mth PBCH data segment is received at least twice in the preset resource location of the frame. Compared with the prior art, the PBCH signal strength received by the user equipment is enhanced, thereby improving communication quality.

Embodiment 4: The embodiment of the present invention provides a physical broadcast channel transmission method, which is related to the base station side, as shown in FIG. 16 , and includes:

1 6 01. The base station divides the PBCH data into n PBCH data segments, where w = 2 is an integer greater than 2.

1 6 02. The m-th PBCH data segment is mapped to a preset resource position in a preset PBCH, where l≤m≤M, and the preset PBCH is set with 2 radio frames, y=x.

In the prior art, the base station divides the PBCH data into four data segments, and directly maps the four PBCH data segments into the first four slots of the first time slot of the 0th subframe of the four radio frames in the preset PBCH. On the OFDM symbol, compared with the prior art, the number of PBCH data segments increases, the length of the PBCH data segmentation map increases, and the probability of the PBCH signal received by the user equipment increases, thereby improving the communication quality.

Each radio frame includes a total of 10 subframes from 0 to 9 subframes. When x=y, that is, when the number of PBCH data segments divided into PBCH data is equal to the number of radio frames of the preset PBCH, The base station maps the mth PBCH data segment to a preset resource location in the preset PBCH Specifically, the base station may map the mth PBCH data segment to the first 4 OFDM symbols of the slot 1 of the 0th subframe of the mth radio frame in the preset PBCH. Assuming that x=y=3, the PBCH data is divided into 8 PBCH data segments, and the number of radio frames of the preset PBCH is 8, as shown in FIG. 17, the base station can map the first PBCH data segment A1 to Presetting the first 4 OFDM symbols of slot 1 of the 0th subframe of the 1st radio frame in the PBCH; mapping the 2nd PBCH data segment A 2 to the 0th of the 2nd radio frame in the preset PBCH On the first 4 OFDM symbols of slot 1 of the subframe: mapping the 3rd PBCH data segment A 3 to the first 4 slots of slot 0 of the 0th subframe of the 3rd radio frame in the preset PBCH Mapping the 4th PBCH data segment A4 to the first 4 OFDM symbols of slot 1 of the 0th subframe of the 4th radio frame in the preset PBCH; dividing the 5th PBCH data The segment A5 is mapped to the first 4 OFDM symbols of the slot 1 of the 0th subframe of the 5th radio frame in the preset PBCH; the 6th PBCH data segment A6 is mapped to the 6th radio of the preset PBCH Mapping the 7th PBCH data segment A7 to the slot 1 of the 0th subframe of the 7th radio frame in the preset PBCH on the first 4 OFDM symbols of the slot 1 of the frame 0; On the first 4 OFDM symbols; segment the 8th PBCH data into A8 To preset the first four OFDM symbols of the PBCH No. 1 slot 0 of the eighth sub-frame of the radio frame.

For example, in FIG. 17, the base station maps the first PBCH data segment A 1 to the first four OFDM symbols of the first slot 1 01 1 of the 0th subframe 01 of the first radio frame 10 1 01 1 a, the same as the second PBCH data segment A2, the third PBCH data segment A 3, the fourth PBCH data segment A4, the fifth PBCH data segment A5, the sixth PBCH data The resource mapping manner of the segment A6, the seventh PBCH data segment A7, and the eighth PBCH data segment A8 in the corresponding region is the same as the resource mapping manner of the first PBCH data segment A1 in the region N, where No longer.

It should be noted that the base station may also map the mth PBCH data segment to any OFDM symbol of the mth radio frame in the preset PBCH, and the mapping manner is the same as that of the mapping in FIG.

In the resource mapping manner shown in Figure 17 of the present invention, the base station maps the mth PBCH data segment to the first 4 slots of the 0th subframe of the mth radio frame in the preset PBCH. On the OFDM symbols, the length of the PBCH data segmentation and mapping is increased, thus increasing the accuracy of PBCH data demodulation. The embodiment of the invention provides a physical broadcast channel transmission method, which relates to a user equipment Side, including:

The user equipment receives the mth PBCH data segment on the preset resource location in the preset PBCH, where the preset PBCH is configured with 2 radio frames, where the mth PBCH data segment is PBCH data segmentation. Any one of the n PBCH data segments, η = 2 ^χ , the _x is an integer greater than 2, l ≤ ≤", _{= x} . In the prior art, the user equipment directly has 4 radio frames in the preset PBCH. The first 4 OFDM symbols of the first slot of the 0th subframe receive 4 PBCH data segments. Compared with the prior art, the number of PBCH data segments received by the user equipment is increased, and the PBCH data is increased. The length of the segment reception increases, and the probability of the PBCH signal received by the user equipment increases, thereby improving the communication quality.

By way of example, the present invention assumes x = 3, i.e., the preset PBCH includes 8 radio frames, and the PBCH data is divided into 8 PBCH data segments. The embodiment of the present invention further provides a physical broadcast channel transmission method, as shown in FIG. 18, including:

1 8 01. The base station divides the PBCH data into 8 PBCH data segments.

1 8 02. The base station maps the mth PBCH data segment to a preset resource position of the mth radio frame in the preset PBCH, where l≤ ≤8.

Assume that m=l, 2, 3, 4, 5, 6, 7, 8 is also shown in Figure 17. The base station will map the first PBCH data segment A 1 to the first radio frame in the preset PBCH. The first 4 OFDM symbols of the slot 1 of the 0th subframe; the 2nd PBCH data segment A2 is mapped to the first 4 of the slot 1 of the 0th subframe of the second radio frame in the preset PBCH Mapping the third PBCH data segment A 3 to the first 4 OFDM symbols of slot 1 of the 0th subframe of the 3rd radio frame in the preset PBCH; and placing the 4th PBCH data The segment A4 is mapped to the first 4 OFDM symbols of the slot 1 of the 0th subframe of the 4th radio frame in the preset PBCH; the 5th PBCH data segment A5 is mapped to the 5th of the preset PBCH The first 4 OFDM symbols of slot 1 of the 0th subframe of the radio frame; the 6th PBCH data segment A6 is mapped to the slot 1 of the 0th subframe of the 6th radio frame in the preset PBCH The first 4 OFDM symbols are mapped; the 7th PBCH data segment A 7 is mapped to the first 4 OFDM symbols of the 1st slot of the 0th subframe of the 7th radio frame in the preset PBCH; PBC The H data segment A8 is mapped to the first 4 OFDM symbols of the slot 1 of the 0th subframe of the 8th radio frame in the preset PBCH.

For example, in FIG. 17, the base station maps the first PBCH data segment A 1 to the first one. On the first 4 OFDM symbols 1011a of the first slot 1011 of the 0th subframe 101 of the radio frame 10, the second PBCH data segment A2, the third PBCH data segment A3, and the fourth PBCH data are the same. The resource mapping manner of the segment A4, the fifth PBCH data segment A5, the sixth PBCH data segment A6, the seventh PBCH data segment A7, and the eighth PBCH data segment A8 in the corresponding region and the first The resource mapping manners of the PBCH data segment A1 in the area N are the same, and are not described here.

1803. The user equipment receives the mth PBCH data segment on a preset resource location of the mth radio frame in the preset PBCH.

Where m=l, 2, 3, 4, 5, 6, 7, 8 are as shown in FIG. 17, the user equipment may be in front of the first slot of the 0th subframe of the mth radio frame in the preset PBCH. The mth PBCH data segment is received on 4 OFDM symbols. Assuming that x=y=3, the PBCH data is divided into 8 PBCH data segments, and the number of radio frames of the preset PBCH is 8, as shown in FIG. 17, the user equipment can be 0 of the first radio frame in the preset PBCH. The first PBCH data segment A1 is received on the first 4 OFDM symbols of slot 1 of the number subframe; the first 4 OFDM slots of slot 1 of subframe 0 of the second radio frame in the preset PBCH The second PBCH data segment A2 is received on the symbol; the third PBCH data segment A3 is received on the first four OFDM symbols of the first slot of the 0th subframe of the third radio frame in the preset PBCH; The first 4 PBCH data segments A4 are received on the first 4 OFDM symbols of the 1st slot of the 0th subframe of the 4th radio frame in the preset PBCH; the 0th radio of the 5th radio frame in the preset PBCH The 5th PBCH data segment A5 is received on the first 4 OFDM symbols of the slot 1 of the frame; the first 4 OFDM symbols of the slot 1 of the 0th subframe of the 6th radio frame in the preset PBCH Receiving a sixth PBCH data segment A6; receiving a seventh PBCH data segment A7 on the first four OFDM symbols of slot 1 of the 0th subframe of the seventh radio frame in the preset PBCH; The eighth PBCH data segment A8 is received on the first four OFDM symbols of slot 1 of the 0th subframe of the eighth radio frame in the preset PBCH.

For example, in FIG. 17, the user equipment receives the first PBCH data segment A1 on the first four OFDM symbols 1011a of the first slot 1011 of the 0th subframe 101 of the first radio frame 10, the same reason. 2 PBCH data segment A2, 3rd PBCH data segment A3, 4th PBCH data segment A4, 5th PBCH data segment A5, 6th PBCH data segment A6, 7th PBCH data segment The receiving manner of the segment A7 and the eighth PBCH data segment A8 in the corresponding region is the same as that of the first PBCH data segment A1 in the region N, and details are not described herein again. In the resource mapping manner shown in Figure 17 of the present invention, the base station maps the mth PBCH data segment to the first four slots of the first time slot of the 0th subframe of the mth radio frame in the preset PBCH. On the OFDM symbol, the user equipment receives the mth PBCH data segment on the first 4 OFDM symbols of the slot 1 of the 0th subframe of the mth radio frame in the preset PBCH, so that the PBCH data is added. The length of the segmentation and mapping, the probability of the PBCH signal received by the user equipment increases, thus improving the communication quality.

Example 5:

The embodiment of the present invention provides a base station 500, as shown in FIG. 19, including: a segmentation unit 5001, configured to divide PBCH data into n PBCH data segments, where n = 2 ^x , and the X is greater than 1 The integer.

The first mapping unit 5002 is configured to map the mth PBCH data segment to a preset resource location in the preset PBCH, where l≤m≤M, and the preset PBCH is configured with two radio frames.

_y = Λ:.

The embodiment of the present invention provides a user equipment 600, as shown in FIG. 20, including: a first receiving unit 6001, configured to receive an mth PBCH data segment on a preset resource location in a preset PBCH, where The preset PBCH is set with 2 radio frames.

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= 2 ^X , the X is an integer greater than 2, l ≤ ≤", _{y = X o} The embodiment of the present invention provides a physical broadcast channel transmission system 700, as shown in FIG. 21, including:

Any of the base stations 500 described above.

And any of the user devices 600 described above. It should be noted that the user equipment in the system may also be a common user equipment. In particular, the physical broadcast channel transmission system may have at least two preset PBCHs, and the lengths of the at least two preset PBCHs may be different. For example, the preset PBCH and the length of 4 radio frames may exist in the system. A preset PBCH of 8 radio frames in length. In the prior art, the base station divides the PBCH data into four data segments, and directly maps the four PBCH data segments into the first four slots of the first time slot of the 0th subframe of the four radio frames in the preset PBCH. On the OFDM symbol, the number of PBCH data segments is compared with the prior art. As a result, the length of the PBCH data segmentation map increases, and the probability of the PBCH signal received by the user equipment increases, thereby improving the communication quality.

The embodiment of the present invention provides a base station 800, as shown in FIG. 22, including:

The processor 8 001 is configured to divide the PBCH data into n PBCH data segments, where w = 2^, where X is an integer greater than 2.

The processor 8 001 is further configured to map the mth PBCH data segment to a preset resource location in the preset PBCH, where ≤ ≤ M, and the preset PBCH is configured with a radio frame, y = x.

An embodiment of the present invention provides a user equipment 900, as shown in FIG. 25, including: a receiver 9001, configured to receive an mth PBCH data segment on a preset resource location in a preset PBCH, where the preset The PBCH is set with 2 radio frames.

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= 2 ^X , the X is an integer greater than 2, l ≤ ≤", _{y = X o} A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working process of the system, the device and the unit described above can be referred to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or may be composed of two or more units. In one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Claim

A physical broadcast channel PBCH transmission method, comprising: dividing PBCH data into n pieces of PBCH data segments, wherein said "x" is an integer greater than 0;

The mth PBCH data segment is repeatedly mapped to the preset resource location in the preset PBCH by at least 2 times, l≤m≤M, and the preset PBCH is set with 2 radio frames, _y ≥x.

2. The method according to claim 1, wherein said x=y,

The step of mapping the mth PBCH data into at least two repetitions of the preset resource location in the preset PBCH includes:

And dividing the mth PBCH data segment by at least 2 times in a preset resource position of the mth radio frame in the preset PBCH.

The method according to claim 2, wherein the x=y, the m-th PBCH data segment is at least 2 times repeatedly mapped to a pre-mth radio frame in the preset PBCH The resource location includes: mapping the mth PBCH data segment to a preset orthogonal frequency division multiplexing of each subframe in the 0th to the 9th subframes in the mth radio frame in the preset PBCH. On the OFDM symbol.

The method according to claim 2, wherein the mapping of the mth PBCH data segment by at least 2 times to a preset resource location of the mth radio frame in the preset PBCH includes:

And segmenting the mth PBCH data into at least one mapping on a preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH.

5. The method of claim 1 wherein said x _<3;

Mapping the mth PBCH data segment to the pth radio frame in the preset PBCH At the preset resource location, the /? = +2 ^ , the t is an integer, i ^≤ t ≤ 2 ^y - ^χ -ι.

A physical broadcast channel PBCH transmission method, comprising: receiving an mth PBCH data segment at least twice in a preset resource location in a preset PBCH, where the preset PBCH is set a radio frame; wherein the mth PBCH data segment is any one of n PBCH data segments into which PBCH data is divided, η = 2 ^χ , and the X is an integer greater than or equal to 0, l ≤ ≤", y > x _o

The method according to claim 6, wherein the x=y, the repeating the mth PBCH data segment at least twice in a preset resource location in the preset PBCH includes:

And receiving the mth PBCH data segment at least twice in a preset resource position of the mth radio frame in the preset PBCH.

8. The method of claim 7 wherein:

And the repeating the mth PBCH data segment at least twice in the preset resource location of the mth radio frame in the preset PBCH includes:

9. The method of claim 7 wherein:

And receiving, at least 2 times, the mth PBCH data segment on the preset OFDM symbol of each subframe in the 0th to 9th subframes in the mth radio frame in the preset PBCH.

10. The method of claim 6, wherein said ^{χ <repeating} the predetermined position in a predetermined resource on the PBCH at least 2 m-th received PBCH data segments comprises:

Receiving, at a preset resource location of the mth radio frame in the preset PBCH, the mth PBCH data segment; receiving, at a preset resource location of the pth radio frame in the preset PBCH Mth PBCH data segmentation, /^m + Sx , the t is an integer, l ^≤ t ≤ 2 ^x -l.

A base station, comprising: a segmentation unit, configured to divide PBCH data into n PBCH data segments, _η = 2 ^χ , where x is an integer greater than or equal to 0;

a first mapping unit, configured to map the mth PBCH data segment to the preset resource location in the preset PBCH by at least 2 times, l≤m≤M, the preset PBCH is set with a radio frame, y ≥ X.

The base station according to claim 11, wherein, when the value is x=y, the first mapping unit is further configured to:

The base station according to claim 12, wherein the base station further comprises: a second mapping unit, configured to map the mth PBCH data segment to the mth radio frame in the preset PBCH The preset orthogonal frequency division multiplexing OFDM symbol of each subframe in the subframes 0 to 9.

The base station according to claim 12, wherein the second mapping unit is further configured to:

The base station according to claim 11, wherein, when the value is x<3, the first mapping unit is further configured to:

Mapping the mth PBCH data segment to a preset resource location of the pth radio frame in the preset PBCH, where /?= +2 the t is an integer, i≤t≤2 ^y — ^χ -ι.

A user equipment, comprising: a first receiving unit, configured to receive an mth PBCH data segment at least twice in a preset resource location in a preset PBCH, where the preset PBCH setting There are ^ radio frames; The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, η = 2 ^χ , and the X is an integer greater than or equal to 0, l ≤ m ≤ ", y> x _o

The user equipment according to claim 16, wherein, when the value is x=y, the first receiving unit is further configured to:

The user equipment according to claim 17, wherein the user equipment further includes:

a second receiving unit, configured to receive the mth PBCH on a preset orthogonal frequency division multiplexing OFDM symbol of each subframe in subframes 0 to 9 in the mth radio frame in the preset PBCH Data segmentation.

The user equipment according to claim 17, wherein the second receiving unit is further configured to:

The user equipment according to claim 16, wherein the first receiving unit is further configured to:

Receiving the mth PBCH data segment on a preset resource location of the mth radio frame in the preset PBCH;

Receiving, in the preset resource location of the pth radio frame in the preset PBCH, the mth PBCH data segment, where /^m + S x , the t is an integer, l≤t≤2 ^x -l.

21. A physical broadcast channel transmission system, comprising:

The base station of claims 11 to 15;

And the user equipment of claims 16-20.

22. A physical broadcast channel transmission method, comprising:

PBCH data is divided into n PBCH data segments, where w = 2 said x is an integer greater than 2;

Mapping the mth PBCH data segment to a preset resource location in the preset PBCH, l ≤ ≤", the preset PBCH is set with 2 radio frames, y = ;c.

A physical broadcast channel transmission method, comprising:

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, n = 2 ^x , and the X is an integer greater than 2, l ≤ ≤", _{y = X o}

A base station, comprising: a segmentation unit, configured to divide PBCH data into n pieces of PBCH data segments, where “= 2 said X is an integer greater than 2;

The first mapping unit is configured to map the mth PBCH data segment to a preset resource location in the preset PBCH, where l≤m≤M, and the preset PBCH is configured with two radio frames, y=x.

A user equipment, comprising: a first receiving unit, configured to receive an mth PBCH data segment on a preset resource location in a preset PBCH, where the preset PBCH is configured with two wireless frame;

The mth PBCH data segment is any one of n PBCH data segments into which the PBCH data is divided, "= 2 ^X , the X is an integer greater than 2, l ≤ ≤", _{y = X o}

A physical broadcast channel transmission system, comprising: the base station of claim 24;

And the user equipment of claim 25.