CN104104466A

CN104104466A - Broadcast channel transmitting and receiving method, system and equipment

Info

Publication number: CN104104466A
Application number: CN201310115576.8A
Authority: CN
Inventors: 夏金环; 柯博安
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-04-03
Filing date: 2013-04-03
Publication date: 2014-10-15

Abstract

The invention relates to the technical field of radio communication, and particularly relates to a broadcast channel transmitting and receiving method, system and equipment so as to enhance a transmission broadcast channel. The method of the embodiment of the invention comprises the steps that radio frames in need of bearing a broadcast channel in a time period are confirmed by network side equipment; and after spread spectrum processing is performed on information borne in the broadcast channel by the network side equipment, the broadcast channel is transmitted to user equipment at the confirmed radio frames. According to the embodiment of the invention, the information borne in the broadcast channel is transmitted after spread spectrum processing performed by the network side equipment, a receiving end acquires spread spectrum gain, i.e. receiving signal power of the receiving end is enhanced so that the transmission broadcast channel is enhanced.

Description

A kind of method of sending and receiving broadcast channel, system and equipment

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method of sending and receiving broadcast channel, system and equipment.

Background technology

Current LTE(Long Term Evolution, Long Term Evolution) in system, PBCH(Physical Broadcast Channel, Physical Broadcast Channel) carrying: downlink bandwidth indication information (3 bit), PHICH(Physical Hybrid-ARQ Indication Channel, physical layer mixed automatic re-transmission indicating channel) channel configuration information (3 bit), System Frame Number (8 bit) and 10 free time.Wherein downlink bandwidth indication information represents to send the downlink system bandwidth of the carrier wave at PBCH place.PHICH is for carrying the PUSCH(Physical Uplink Shared Channel that subscriber equipment is sent, the confirmation whether data Physical Uplink Shared Channel) correctly receive, as eNB(Evolved Node Base station, evolved base station) incorrect UE(User Equipment, the subscriber equipment of detecting) send PUSCH time, PHICH carrying NACK(Negative Acknowledge, negative confirmation), otherwise, loading ACK (Acknowledge confirms).The OFDM(Orthogonal Frequency Division Multiplexing taking in time domain when the configuration information of PHICH refers to PHICH resource mapping here, OFDM) the grouping number of PHICH on symbol and frequency domain.System Frame Number is from #0 frame open numbering to #1023 frame, and then starts circulation from #0.The numbering that represents 1024 frames needs 10 bits altogether, and PBCH only carries the bit of most-significant byte, and the scrambler of 2 minimum bits when detecting PBCH obtains.The maximum coverage range of community generally refers to the signal that send with maximum transmit power base station, if UE can correctly detect with certain probability the signal of transmission, within the coverage of the Dou community, position at UE place.The factor that affects community covering is a lot, comprising: the penetration loss of wireless signal, the sensitivity of receiver user etc.Wherein, building is the principal element that causes signal penetration loss, and particularly, between floor, especially, under basement scene, the penetration loss of signal is very large.Take Fig. 1 as example, and UE1, UE2, UE3, UE4 and UE5 are suitable apart from the distance of base station, but UE1 and UE4 are positioned on open space or ground; UE2, UE3 and UE4 lay respectively at basement.Test shows, than ground UE, the user of basement receives the loss that signal that base station sends has nearly 20dB.In other words, from base station angle, the scope that can cover basement user is more much smaller than the scope that covers terrestrial user.In order to make basement UE and ground UE can reach identical coverage, need to strengthen the reception signal of basement UE, thereby improve the received signal to noise ratio of basement subscriber signal, compare with the UE suitable apart from base station, the penetration loss of compensation floor, the signal strength signal intensity that basement UE and ground UE are received is also suitable, thereby realizes the object of coverage enhancement.If UE cannot receive PBCH, just cannot obtain SFN(System Frame Number, System Frame Number), also just cannot carry out transfer of data.

Summary of the invention

The invention provides a kind of method, system and equipment of sending and receiving broadcast channel, in order to strengthen transmitting broadcasting channel.

First aspect, provides a kind of method that sends broadcast channel, comprising:

Network equipment needs to carry the radio frames of broadcast channel in the determining time;

Described network equipment carries out after spread processing the information of carrying in broadcast channel, in definite radio frames, to subscriber equipment, sends broadcast channel.

In conjunction with first aspect, in the possible implementation of the first, described network equipment needs to carry the radio frames of broadcast channel in the determining time, comprising:

Described network equipment is according to the corresponding relation of time period and radio frames, and the radio frames that the described time period is corresponding needs to carry the radio frames of broadcast channel in the described time period.

In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second, described network equipment carries out spread processing to the information of carrying on broadcast channel, comprising:

Described network equipment adopts particular sequence corresponding to described time period to carry out spread processing to the information of carrying in broadcast channel;

Wherein, particular sequence corresponding to each time period in the cycle.

In conjunction with the possible implementation of the first of first aspect, in the third possible implementation, quadrature between particular sequence corresponding to each time period in the cycle.

In conjunction with the possible implementation of the first of first aspect or first aspect, in the 4th kind of possible implementation, described network equipment sends broadcast channel to subscriber equipment and comprises in definite radio frames:

Wherein, particular sequence corresponding to each time period in the cycle.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of first aspect or first aspect, in the 5th kind of possible implementation, the information of carrying in described broadcast channel comprises the cyclic redundancy check bits CRC of the specific scramble codes scrambling that is used to indicate the described time period.

In conjunction with the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, described CRC is for only passing through the CRC of specific scramble codes scrambling; Or

Described CRC is through being used to indicate the scrambler of base station transmit antennas port and the CRC of particular sequence scrambling.

A kind of in conjunction with in the possible six kinds of possible implementations of implementation to the of the first of first aspect or first aspect, in the 7th kind of possible implementation, the packets of information of carrying in described broadcast channel is containing the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel; Or

The packets of information of carrying in described broadcast channel contains the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel, and comprises system information; Or

The information of carrying in described broadcast channel comprises system information.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of first aspect or first aspect, in the 8th kind of possible implementation, the information of carrying in described broadcast channel is sky information.

A kind of in conjunction with in the possible eight kinds of possible implementations of implementation to the of the first of first aspect or first aspect, in the 9th kind of possible implementation, described network equipment carries out spread processing to the information of carrying on broadcast channel, comprising:

Described network equipment, after original information stream is carried out to chnnel coding, before broadcast channel is carried out to resource mapping, carries out spread processing to the information of carrying on broadcast channel;

Wherein, described original information stream refers to after the raw information being carried on broadcast channel and adds the information flow forming after CRC.

A kind of in conjunction with in the possible nine kinds of possible implementations of implementation to the of the first of first aspect or first aspect, in the tenth kind of possible implementation, described network equipment carries out spread processing to the information of carrying on broadcast channel, comprising:

Each information bit in the information of carrying on broadcast channel is multiplied each other with particular sequence described network equipment successively or mould 2 adds; Or

Described network equipment by the information of carrying on broadcast channel successively with particular sequence in each multiply each other or mould 2 adds; Or

Described network equipment, according to the order of every cross-talk sequence in particular sequence, carries out the first product processing or the processing of the second product by the information of carrying on broadcast channel and each subsequence; Wherein, to process be each information bit in the information of carrying on broadcast channel to be multiplied each other with subsequence successively or mould 2 adds to the first product; The second product process be by the information of carrying on broadcast channel successively with subsequence in each multiply each other or mould 2 adds.

Second aspect, provides a kind of method that receives broadcast channel, comprising:

Subscriber equipment receives broadcast channel constantly with the starting point of current wireless frame, and the information of carrying in broadcast channel is detected;

Described subscriber equipment is separated spread processing to the information of carrying in the broadcast channel detecting.

In conjunction with second aspect, in the possible implementation of the first, described subscriber equipment receives broadcast channel constantly with the starting point of current wireless frame, and after the information of carrying in broadcast channel is detected, also comprises:

Described subscriber equipment is according to the corresponding relation of time period and radio frames, and definite radio frames corresponding to time period that broadcast channel detected is the radio frames of carrying broadcast channel;

Described subscriber equipment, according to the time period under the radio frames of the radio frames of carrying broadcast channel and carrying broadcast channel, is determined System Frame Number.

In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, described subscriber equipment is determined the time period under the radio frames of carrying broadcast channel according to following manner:

Described subscriber equipment, according to the corresponding relation of time period and particular sequence, is determined when the information of carrying in the broadcast channel detecting is separated to spread processing, the affiliated time period of radio frames that the time period that the particular sequence of employing is corresponding is carrying broadcast channel.

In conjunction with the possible implementation of the first of second aspect or the possible implementation of the second, in the third possible implementation, described subscriber equipment is determined the time period under the radio frames of carrying broadcast channel according to following manner:

Described subscriber equipment, according to the specific scramble codes to the time period that is used to indicate the radio frames place that need to carry broadcast channel of the upper scrambling of the cyclic redundancy check bit CRC in the information of carrying in the broadcast channel detecting, is determined the affiliated time period of radio frames of carrying broadcast channel.

In conjunction with the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation, described CRC is for only passing through the CRC of described specific scramble codes scrambling; Or described CRC is through being used to indicate the scrambler of base station transmit antennas port and the CRC of described particular sequence scrambling.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of second aspect or second aspect, in the 5th kind of possible implementation, the packets of information of carrying in broadcast channel is containing the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel; Or

The packets of information of carrying in broadcast channel contains the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel, and comprises system information; Or

The information of carrying in broadcast channel comprises system information.

In conjunction with the possible implementation of the second of the possible implementation of the first of second aspect or second aspect or second aspect, in the 6th kind of possible implementation,

In broadcast channel, do not carry any information.

A kind of in conjunction with in the possible six kinds of possible implementations of implementation to the of the first of second aspect or second aspect, in the 7th kind of possible implementation, described subscriber equipment is separated spread processing to the information of carrying on broadcast channel, also comprises:

Described subscriber equipment, after carrying out resource demapping, before carrying out channel decoding, adopts particular sequence to separate spread processing to the information of carrying on broadcast channel.

A kind of in conjunction with in the possible seven kinds of possible implementations of implementation to the of the first of second aspect or second aspect, in the 8th kind of possible implementation, the particular sequence that described subscriber equipment adopts while separating spread processing according to following manner is definite:

Described subscriber equipment starts constantly with the starting point of current wireless frame, according to the resource mapping method of broadcast channel, receives broadcast channel;

Described subscriber equipment carries out related operation by least one code word in the broadcast channel in current receiver window and each particular sequence, determines the correlation corresponding with each particular sequence;

If a code word is carried out related operation with each particular sequence respectively, the particular sequence of selecting particular sequence that maximum top n correlation is corresponding to adopt when separating spread processing from be greater than the correlation of setting threshold value, N is positive integer; While not being greater than the correlation of setting threshold value in all correlations of determining, using next receiver window as current receiver window, and return at least one code word in the broadcast channel in current receiver window and each particular sequence are carried out to related operation, determine the step of the correlation that each particular sequence is corresponding;

If a plurality of code words are carried out related operation with each particular sequence respectively, the particular sequence of selecting particular sequence corresponding to the front M correlations value of correlation maximum to adopt when separating spread processing from be greater than the correlation of setting threshold value, M is positive integer; While not being greater than the correlation of setting threshold value in all correlations of determining, using next receiver window as current receiver window, and return at least one code word in the broadcast channel in current receiver window and each particular sequence are carried out to related operation, determine the step of the correlation that each particular sequence is corresponding; Wherein, a code word is carried out related operation with each particular sequence respectively, and in correlation corresponding to each particular sequence of obtaining, the particular sequence of correlation maximum is the particular sequence of a correlation maximum.

A kind of in conjunction with in the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation, described subscriber equipment carries out related operation according to following manner by a code word and a particular sequence in the broadcast channel in current receiver window, comprising:

Described subscriber equipment is directly made related operation by a code word and a particular sequence; Or

Described subscriber equipment, according to the resource mapping method of broadcast channel, takes out an information bit and forms a code word from each block of information, and this code word and each particular sequence are made to related operation; Or

Described subscriber equipment, according to the order of every cross-talk sequence in a particular sequence, carries out the processing of third phase pass or the 4th relevant treatment by a numeral and at least one subsequence; Wherein, it is that a code word is direct that third phase closes processing and at least one subsequence makes related operation, the 4th relevant treatment is the resource mapping method according to broadcast channel, takes out an information bit and form a code word from each block of information, and this code word and at least one subsequence are made to related operation.

The third aspect, provides a kind of network equipment that sends broadcast channel, comprising:

Determination module, the radio frames that needs to carry broadcast channel for the determining time;

Sending module, carries out after spread processing for the information that broadcast channel is carried, and in definite radio frames, to subscriber equipment, sends broadcast channel.

In conjunction with the third aspect, in the possible implementation of the first, described determination module specifically for:

According to the corresponding relation of time period and radio frames, the radio frames that the described time period is corresponding needs to carry the radio frames of broadcast channel in the described time period.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the possible implementation of the second, described sending module specifically for:

Adopt particular sequence corresponding to described time period to carry out spread processing to the information of carrying in broadcast channel; Wherein, particular sequence corresponding to each time period in the cycle.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the third possible implementation, described sending module specifically for:

Adopt particular sequence corresponding to described time period to carry out spread processing to the information of carrying in broadcast channel;

Wherein, particular sequence corresponding to each time period in the cycle.

A kind of in conjunction with the possible implementation of the first of the third aspect or the third aspect in the third possible implementation, in the 4th kind of possible implementation, the information of carrying in described broadcast channel comprises the CRC of the specific scramble codes scrambling that is used to indicate the described time period.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of the third aspect or the third aspect, in the 5th kind of possible implementation, described sending module specifically for:

After original information stream is carried out to chnnel coding, before broadcast channel is carried out to resource mapping, the information of carrying on broadcast channel is carried out to spread processing;

A kind of in conjunction with in the possible five kinds of possible implementations of implementation to the of the first of the third aspect or the third aspect, in the 6th kind of possible implementation, described sending module specifically for:

Each information bit in the information of carrying on broadcast channel is multiplied each other with particular sequence successively or mould 2 adds; Or

By the information of carrying on broadcast channel successively with particular sequence in each multiply each other or mould 2 adds; Or

According to the order of every cross-talk sequence in particular sequence, the information of carrying on broadcast channel and each subsequence are carried out to the first product processing or the processing of the second product; Wherein, to process be each information bit in the information of carrying on broadcast channel to be multiplied each other with subsequence successively or mould 2 adds to the first product; The second product process be by the information of carrying on broadcast channel successively with subsequence in each multiply each other or mould 2 adds.

Fourth aspect, provides a kind of subscriber equipment that receives broadcast channel, comprising:

Detection module, receives broadcast channel constantly for the starting point with current wireless frame, and the information of carrying in broadcast channel is detected;

Receiver module, separates spread processing for the information that the broadcast channel detecting is carried.

In conjunction with fourth aspect, in the possible implementation of the first, described receiver module also for:

According to the corresponding relation of time period and radio frames, the radio frames that definite radio frames corresponding to time period that broadcast channel detected is carrying broadcast channel; According to the time period under the radio frames of the radio frames of carrying broadcast channel and carrying broadcast channel, determine System Frame Number.

In conjunction with the possible implementation of the first of fourth aspect, in the possible implementation of the second, described receiver module specifically for:

According to the corresponding relation of time period and particular sequence, to determine when the information of carrying in the broadcast channel detecting is separated to spread processing, the time period that the particular sequence of employing is corresponding is the time period under the radio frames of carrying broadcast channel.

In the possible implementation of the first of fourth aspect or the possible implementation of the second, in the third possible implementation, described receiver module specifically for:

According to the specific scramble codes of the time period that is used to indicate the radio frames place that need to carry broadcast channel of the upper scrambling of the CRC in the information of carrying in the broadcast channel detecting, determine the affiliated time period of radio frames of carrying broadcast channel.

A kind of in conjunction with the possible implementation of the first of fourth aspect or fourth aspect in the third possible implementation, in the 4th kind of possible implementation, described receiver module specifically for: after carrying out resource demapping, before carrying out channel decoding, adopt particular sequence to separate spread processing to the information of carrying on broadcast channel.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of fourth aspect or fourth aspect, in the 5th kind of possible implementation, described receiver module specifically for:

Starting point with current wireless frame starts constantly, according to the resource mapping method of broadcast channel, receives broadcast channel; At least one code word in broadcast channel in current receiver window and each particular sequence are carried out to related operation, determine the correlation corresponding with each particular sequence;

In conjunction with the 5th kind of possible implementation of fourth aspect, in the 6th kind of possible implementation, described receiver module specifically for:

Directly a code word and a particular sequence are made to related operation; Or according to the resource mapping method of broadcast channel, from each block of information, take out an information bit and form a code word, this code word and each particular sequence are made to related operation; Or according to the order of every cross-talk sequence in a particular sequence, a numeral and at least one subsequence are carried out to the processing of third phase pass or the 4th relevant treatment; Wherein, it is that a code word is direct that third phase closes processing and at least one subsequence makes related operation, the 4th relevant treatment is the resource mapping method according to broadcast channel, takes out an information bit and form a code word from each block of information, and this code word and at least one subsequence are made to related operation.

The 5th aspect, provides a kind of network equipment that sends broadcast channel, comprising:

Processor, the radio frames that needs to carry broadcast channel for the determining time, and definite radio frames is notified to reflector;

Reflector, carries out after spread processing for the information that broadcast channel is carried, and in the radio frames of processor notice, to subscriber equipment, sends broadcast channel.

In conjunction with the 5th aspect, in the possible implementation of the first, described processor specifically for:

In conjunction with the possible implementation of the first of the 5th aspect or the 5th aspect, in the possible implementation of the second, described reflector specifically for:

Wherein, particular sequence corresponding to each time period in the cycle.

In conjunction with the possible implementation of the first of the 5th aspect or the 5th aspect, in the third possible implementation, described sending module specifically for:

Wherein, particular sequence corresponding to each time period in the cycle.

A kind of in conjunction with the possible implementation of the first of the 5th aspect, the 5th aspect in the third possible implementation, in the 4th kind of possible implementation, the information of carrying in described broadcast channel comprises the CRC of the specific scramble codes scrambling that is used to indicate the described time period.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of the 5th aspect or the 5th aspect, in the 5th kind of possible implementation, described sending module specifically for:

A kind of in conjunction with in the possible five kinds of possible implementations of implementation to the of the first of the 5th aspect or the 5th aspect, in the 6th kind of possible implementation, described sending module specifically for:

The 6th aspect, provides a kind of subscriber equipment that receives broadcast channel, comprising:

Processor, receives broadcast channel constantly for the starting point with current wireless frame, and the information of carrying in broadcast channel is detected, after information being detected, and Notification Sink;

Receiver, for after receiving the notice of processor, separates spread processing to the information of carrying in the broadcast channel detecting.

In conjunction with the 6th aspect, in the possible implementation of the first, described receiver also for:

In conjunction with the possible implementation of the first of the 6th aspect, in the possible implementation of the second, described receiver module specifically for:

In the possible implementation of the first of the 6th aspect or the possible implementation of the second, in the third possible implementation, described receiver module specifically for:

A kind of in conjunction with the possible implementation of the first of the 6th aspect or the 6th aspect in the third possible implementation, in the 4th kind of possible implementation, described receiver module specifically for:

After carrying out resource demapping, before carrying out channel decoding, adopt particular sequence to separate spread processing to the information of carrying on broadcast channel.

A kind of in conjunction with in the possible four kinds of possible implementations of implementation to the of the first of the 6th aspect or the 6th aspect, in the 5th kind of possible implementation, described receiver module specifically for:

In conjunction with the 5th kind of possible implementation of the 6th aspect, in the 6th kind of possible implementation, described receiver module specifically for:

The 7th aspect, a kind of system that receives broadcast channel, comprising:

Network equipment, the radio frames that needs to carry broadcast channel for the determining time, carries out after spread processing the information of carrying in broadcast channel, in definite radio frames, to subscriber equipment, sends broadcast channel;

Subscriber equipment, receives broadcast channel constantly for the starting point with current wireless frame, and the information of carrying in broadcast channel is detected, and the information of carrying in the broadcast channel detecting is separated to spread processing.

Embodiment of the present invention network equipment is standby to carry out after spread processing the information of carrying in broadcast channel, in definite radio frames, to subscriber equipment, send broadcast channel, because embodiment of the present invention network equipment carries out sending after spread processing to the information of carrying in broadcast channel, receiving terminal can obtain spreading gain, has been equivalent to improve the received signal power of receiving terminal.Make transmitting broadcasting channel obtain enhancing.

Accompanying drawing explanation

Fig. 1 is communication scenes schematic diagram in background technology;

Fig. 2 is the method flow schematic diagram of embodiment of the present invention transmitting broadcasting channel;

Fig. 3 A is the schematic diagram of embodiment of the present invention time division section;

Fig. 3 B is broadcast channel data fractional resource mapping schematic diagram in embodiment of the present invention the first predefine resource;

Fig. 3 C is broadcast channel data fractional resource mapping schematic diagram in embodiment of the present invention the second predefine resource;

Fig. 4 is that the embodiment of the present invention adopts spread spectrum to send the block diagram of broadcast channel;

Fig. 5 is that the embodiment of the present invention adopts spread spectrum to receive the block diagram of broadcast channel;

Fig. 6 is embodiment of the present invention broadcast channel mapping schematic diagram in a period of time;

Fig. 7 is embodiment of the present invention SFN by CRC(Cyclic Redundancy Check, cyclic redundancy check bits) schematic diagram of scrambler indication;

Fig. 8 A is embodiment of the present invention the first mapping mode schematic diagram;

Fig. 8 B is embodiment of the present invention the second mapping mode schematic diagram;

Fig. 8 C is the third mapping mode schematic diagram of the embodiment of the present invention;

Fig. 9 is the method flow schematic diagram that the embodiment of the present invention sends broadcast channel;

Figure 10 is the method flow schematic diagram that the embodiment of the present invention receives broadcast channel;

Figure 11 is the system flow schematic diagram of embodiment of the present invention transmitting broadcasting channel;

Figure 12 is the structural representation that embodiment of the present invention the first sends the network equipment of broadcast channel;

Figure 13 is the structural representation that embodiment of the present invention the first receives the subscriber equipment of broadcast channel;

Figure 14 is the structural representation that embodiment of the present invention the second sends the network equipment of broadcast channel;

Figure 15 is the structural representation that embodiment of the present invention the second receives the subscriber equipment of broadcast channel.

Embodiment

Embodiment of the present invention network equipment needs at least one time period within the cycle to carry in the radio frames of broadcast channel and sends broadcast channel to subscriber equipment, so that subscriber equipment is determined System Frame Number corresponding to radio frames in the time period of carrying broadcast channel, the corresponding different System Frame Number of each radio frames in each time period in the cycle wherein, the information of carrying in broadcast channel does not comprise System Frame Number.Because embodiment of the present invention network equipment carries out sending after spread processing to the information of carrying in broadcast channel, receiving terminal can obtain spreading gain, has been equivalent to improve the received signal power of receiving terminal.Make transmitting broadcasting channel obtain enhancing.

Wherein, the information of carrying in embodiment of the present invention broadcast channel is different from the information of carrying in existing broadcast channel and/or different with the resource location of existing broadcast channel mapping, so can use the expression way different from existing broadcast channel for the broadcast channel of the embodiment of the present invention, such as xPBCH etc.If it is all the broadcast channel of the embodiment of the present invention that the broadcast channel occurring in follow-up literary composition does not for convenience of description have specified otherwise, no longer heavily explain.

In declarative procedure below, first from the cooperation of network side and user equipment side, implement to describe, finally from the enforcement of network side and user equipment side, describe respectively, but this does not also mean that the two must coordinate enforcement, in fact, when network side and user equipment side, separate while implementing, also solved respectively in network side, the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.

As shown in Figure 2, the method for embodiment of the present invention transmitting broadcasting channel comprises the following steps:

Step 201, network equipment need to carry broadcast channel radio frames in the determining time;

Step 202, network equipment carry out after spread processing the information of carrying in broadcast channel, in definite radio frames, to subscriber equipment, send broadcast channel;

Step 203, subscriber equipment constantly receive broadcast channel with the starting point of current wireless frame, and the information of carrying in broadcast channel are detected;

Step 204, subscriber equipment are separated spread processing to the information of carrying in the broadcast channel detecting.

In force, network equipment and subscriber equipment are all identical for the understanding of the resource mapping method of broadcast channel, such as can stipulate the resource mapping method of broadcast channel in agreement, also can be by the resource mapping method of network side notifying user equipment broadcast channel.Then network equipment sends broadcast channel according to the resource mapping method of broadcast channel to subscriber equipment; Accordingly, subscriber equipment adopts the resource mapping method of identical broadcast channel to detect.

The embodiment of the present invention is divided into a plurality of time periods by all radio frames in one-period, and the radio frames quantity that all time periods comprise is can be all identical, part is identical or entirely not identical.

The corresponding System Frame Number of each radio frames in cycle, the System Frame Number difference that different radio frames is corresponding.As long as can allow subscriber equipment know the radio frames of carrying broadcast channel, subscriber equipment just can be determined corresponding System Frame Number, and the information of carrying in broadcast channel so just can not comprise System Frame Number.Because the bit number of the information of carrying in broadcast channel has reduced, the transmission of broadcast channel has just obtained enhancing like this.

Subscriber equipment is after broadcast channel being detected and do not know it is which the radio frames carrying broadcast channel in which time period, at this moment just the time period under the radio frames of carrying broadcast channel need to be notified to subscriber equipment, then subscriber equipment, again according to the corresponding relation of the radio frames of time period and carrying broadcast channel, just can accurately be determined the radio frames of carrying broadcast channel.

Wherein, the corresponding relation of radio frames of time period and carrying broadcast channel can stipulate in advance in agreement, also can be by network side notifying user equipment.

For the corresponding relation of radio frames of time period and carrying broadcast channel, preferably a kind of mode is that the radio frames of each time period carrying broadcast channel is identical.

For example for the sequence mapping after spread spectrum, within the time period, on predefined resource location, (carry the radio frames of broadcast channel).Predefined resource location in each time period since (total number of resources that preresearch estimates needs) in continuous 12 radio frames of the 3rd radio frames.Certainly the number of predefine resource also need to be determined by the length of the sequence after spread spectrum, and preferably the number of predefine resource is not less than the length of sequence.Preferably, the resource mapping method of broadcast channel within a time period (128 radio frames) fixed, Fig. 3 A is only the present invention program's a embodiment, be mapped in each time period since the 3rd radio frames, each subframe in each radio frames sends, in each subframe, be mapped in front 4 the OFDM symbols in second time slot, shown in Fig. 3 B; Also can adopt mode as shown in Figure 3 C to shine upon; Also can be the combination of the mapping of two kinds of modes.Also can in each radio frames, shine upon, in each radio frames, be only mapped in a subframe, the position of subframe can be any one in 10 subframes, in the mapping in a subframe, can be mode as shown in Fig. 3 B or Fig. 3 C, can be also the combination of two kinds of modes.

For the time period under the radio frames of carrying broadcast channel, notify mode to subscriber equipment to have a variety of, can display notification, also can implicit expression notice.

Than as shown in Figure 3A, 1024 radio frames (being one-period) are divided into 8 time periods, each time period comprises 128 radio frames, and a corresponding System Frame Number interval.Wherein, first time period comprises 128 radio frames, and corresponding System Frame Number also comprises 128 radio frames from 127, the five time periods of System Frame Number 0～System Frame Number respectively, and corresponding System Frame Number is respectively from System Frame Number 639～System Frame Number 767.Like this, if subscriber equipment detects broadcast channel, which frame in which time period sends, thereby just can judge System Frame Number.Broadcast channel can be in any one time period, or sends in several time period, also can within each time period, send.If sent within each time period, the detection number of times that subscriber equipment was done before acquisition broadcast channel is few, obtains the needed time of broadcast channel shorter, but the resource taking is more.If only sent in a period of time, subscriber equipment, due to the particular location of not knowing to send, can ceaselessly detect, until detect broadcast channel.In Fig. 3 A, if broadcast channel only sends within first time period, subscriber equipment detects within second time period, until first time period in next cycle just likely detects broadcast channel.Therefore, in this case, the detection of subscriber equipment often, detects the needed time of broadcast channel long.Advantage is, need within each time period, not send, and sends the downlink resource that broadcast channel takies few.

Preferably, the quantity of the radio frames that the one-period of the embodiment of the present invention comprises equals the maximum that SFN can represent, in previous example, the maximum that SFN can represent from 0～1023, SFN is 1024, and one-period comprises 1024 radio frames,

At transmitting terminal, when network equipment is determined the radio frames in the time period that need to carry broadcast channel, for a time period, network equipment, according to the corresponding relation of time period and radio frames, needs to carry the radio frames of broadcast channel using corresponding radio frames of this time period in this time period;

Accordingly, subscriber equipment is according to the corresponding relation of time period and radio frames, and definite radio frames corresponding to time period that broadcast channel detected is the radio frames of carrying broadcast channel; According to the time period under the radio frames of the radio frames of carrying broadcast channel and carrying broadcast channel, determine System Frame Number.

Such as subscriber equipment detects after broadcast channel, cannot know the System Frame Number of the radio frames of carrying broadcast channel, at subscriber equipment, know that the time period 1 receives after broadcast channel, just can be according to the corresponding relation of the radio frames of time period and carrying broadcast channel, the radio frames of the carrying broadcast channel of determining time 1 correspondence is radio frames 3, subscriber equipment just the radio frames when broadcast channel being detected as radio frames 3.

Wherein, subscriber equipment determines which receives that the mode of broadcast channel has a lot, enumerates several below time period.

Embodiment mono-, by particular sequence implicit expression, notify.

Network equipment adopts particular sequence corresponding to time period to carry out spread processing to the information of carrying in broadcast channel; Wherein, particular sequence corresponding to each time period in cycle, then need to carry in the radio frames of broadcast channel, to subscriber equipment, send and adopt the particular sequence corresponding to time period at definite radio frames place to carry out the information of carrying in the broadcast channel after spread spectrum.

Accordingly, subscriber equipment, according to the corresponding relation of time period and particular sequence, is determined when the information of carrying in the broadcast channel detecting is separated to spread processing, the affiliated time period of radio frames that the time period that the particular sequence of employing is corresponding is carrying broadcast channel.

The particular sequence here can be that frequency expansion sequence or other specifically meet the sequence of orthogonality.Such as: the sequence that meets orthogonality comprises: frequency expansion sequence, ZC sequence etc.

In this embodiment, a corresponding particular sequence of each time period, the particular sequence that different time sections is corresponding different.

Such as the broadcast channel for carrying in the time period 1, network equipment adopts the particular sequence of time period 1 correspondence to carry out spread spectrum to broadcast channel; Subscriber equipment is again with after particular sequence solution spread spectrum like this, according to the corresponding relation of time period and particular sequence, just can determine and separate spread spectrum time period corresponding to particular sequence used, and which time period that broadcast channel then detected with regard to knowing be time period.

The corresponding relation of time period and particular sequence can stipulate in agreement, also can be by network side notifying user equipment.

The broadcast channel sending in different time sections is used different particular sequences to carry out spread spectrum, and namely within each time period, the particular sequence for spread spectrum is quadrature each other.Spreading factor is restriction not, need to meet spreading gain.For example broadcast channel need to strengthen the performance of 11～12dB, and (length of particular sequence is spreading factor here now to require spreading factor.For example frequency expansion sequence is 1101, and length is 4, and spreading factor is exactly 4 so) be at least 128, and also the number of sequence that need to meet orthogonality is enough for distinguishing the different time periods.For example spreading factor is used 128, and the particular sequence that is 128 from spreading factor, selects good 8 sequences of cross correlation to be respectively used to distinguish the broadcast channel sending in 8 time periods.

Use the spread spectrum embodiment of the present invention: can obtain spreading gain on the one hand, strengthen the transmission of broadcast channel; On the other hand, can implicit expression obtain System Frame Number.

In force, embodiment of the present invention network equipment is when sending broadcast channel, can be after original information stream be carried out to chnnel coding, before broadcast channel is carried out to resource mapping, the information of carrying on broadcast channel is carried out to spread processing, and wherein original information stream refers to after the raw information being carried on broadcast channel and adds the information flow forming after cyclic redundancy check bits.

Accordingly, subscriber equipment, after carrying out resource demapping, before carrying out channel decoding, adopts particular sequence to separate spread processing to the information of carrying on broadcast channel.

Than as shown in Figure 4, after convolutional encoding He before rate-matched, carry out spread spectrum.Certainly, Fig. 3 A is an embodiment.Other embodiment can also comprise: after rate-matched, and spread spectrum before modulation; After modulation, spread spectrum before resource mapping.

Accordingly, the position of spread spectrum is different, and the position of separating spread spectrum is also different.In Fig. 5, the position of separating spread spectrum is corresponding with Fig. 4,, after rate de-matching, before convolutional encoding decoding, separates spread spectrum.Other embodiment can also comprise: after rectification, separate spread spectrum before rate de-matching; After separating resource mapping, before rectification, separate spread spectrum.

In Fig. 4 and Fig. 5, during sending and receiving, the information of broadcast channels carry common comprises downlink system bandwidth and/or the configuration information that comprises down mixing self-retransmission indicating channel, does not comprise System Frame Number in each time period.System Frame Number detects within which by broadcast channel time period and implicit expression obtains.The information of broadcast channels carry common is added CRC check bit, can continue to add antenna scrambler, for the transmitting antenna configuration information of diffServ network side apparatus on CRC check bit simultaneously.The information of adding after CRC check is encoded through tail-biting convolutional code.Bit stream after coding is carried out to spread spectrum, the spreading code of use and send relevant within which time period.

Wherein, the resource mapping method of the embodiment of the present invention concrete broadcast channel within each time period, with Fig. 4 with Figure 5 shows that example: the information bit sequence (if be placed on after rate-matched, can be called is the sequence after rate-matched) after coding is c ₁, c ₂..., c _n, particular sequence is k ₁, k ₂..., k _k, K=128 wherein, if spreading factor is 128, here the length of particular sequence be exactly 128. so the sequence after spread spectrum be c ₁k ₁, c ₁k ₂..., c ₁k _k, c ₂k ₁, c ₂k ₂..., c ₂k _k..., c _nk ₁, c _nk ₂..., c _nk _k, calculate available Resource Unit quantity, then the sequence after spread spectrum is carried out to rate-matched (if spread spectrum occurs in after rate-matched, directly entering next step modulation and resource mapping).

When determining available Resource Unit quantity: as Fig. 3 B and Fig. 3 C are depicted as broadcast channel at the resource mapping figure of a subframe.First determine PRB(Physical Resource Block on frequency domain, Physical Resource Block) quantity, determine again the quantity of the radio frames that need to take, determine again the quantity of subframe in a radio frames that need to take, then determine the quantity of the symbol taking in each subframe, remove the known RE(Resource Element having taken, Resource Unit) quantity (RE taking such as CRC), so remaining RE just can be used for shining upon broadcast channel.For example, if broadcast channel is also mapped in 6 PRB at carrier wave center, take each radio frames, and each subframe that takies each radio frames (does not comprise first subframe, because taken by existing broadcast channel), in each subframe, still use 4 OFDM symbols as Fig. 3 B and Fig. 3 C, so available resource location is exactly that the RE(that in Fig. 3 B or Fig. 3 C, broadcast channel takies has removed the RE that CRC takies).

Order while being specifically mapped on resource location is, first presses frequency domain, then according to symbol, then according to subframe, finally according to radio frames.The angle of sequence from spread spectrum (or the sequence after rate-matched), embodiment of the present invention network equipment carries out spread processing to the information of carrying on broadcast channel three kinds of modes:

Mode one, as shown in Figure 8 A:

c ₁k ₁,c ₁k ₂,...,c ₁k _K,c ₂k ₁,c ₂k ₂,...,c ₂k _K,...,c _nk ₁,c _nk ₂,...,c _nk _K。

That is, network equipment multiplies each other each information bit in the information of carrying on broadcast channel or mould 2 adds successively with particular sequence.

Mode two, as shown in Figure 8 B:

c ₁k ₁,c ₂k ₁,...,c _nk ₁,c ₁k ₂,c ₂k ₂,...,c _nk ₂,...,c ₁k _K,c ₂k _K,...,c _nk _K

That is, network equipment by the information of carrying on broadcast channel successively with particular sequence in each multiply each other or mould 2 adds.

Mode three as shown in Figure 8 C, is the combination of first two mode:

Network equipment, according to the order of every cross-talk sequence in particular sequence, carries out the first product processing or the processing of the second product by the information of carrying on broadcast channel and each subsequence; Wherein, to process be each information bit in the information of carrying on broadcast channel to be multiplied each other with subsequence respectively or mould 2 adds to the first product; The second product process be by the information of carrying on broadcast channel respectively with subsequence in each multiply each other or mould 2 adds.

In force, first frequency expansion sequence is divided into several sections.The sequence that for example spreading factor is 128 can be divided into two sections.In block of information, through the mapping in each section of frequency expansion sequence spread spectrum, can be any one of two kinds of Fig. 8 A and Fig. 8 B.

For which kind of mode of which section use, can in agreement, stipulate, or by network side notifying user equipment.

Such as, particular sequence is divided into two sections of sequences (for example, by k ₁, k ₂, k ₃... .., k ₆₄be divided into one section of sequence, by k ₆₅, k ₆₆, k ₆₇... .., k ₁₂₈be divided into one section of sequence, divide equally particular sequence and refer to a kind of preferred mode, can not divide equally) yet, first paragraph sequence adopts Fig. 8 A mode, second segment sequence adopts Fig. 8 B mode, network equipment using each information bit in the information of carrying on broadcast channel respectively with particular sequence in first paragraph sequence multiply each other or mould 2 adds the block of information after first paragraph spread spectrum, using the information of carrying on broadcast channel successively with particular sequence in each of second segment sequence multiply each other or mould 2 adds the block of information after second segment spread spectrum; Or first paragraph sequence and second segment sequence all adopt Fig. 8 A mode, network equipment using each information bit in the information of carrying on broadcast channel respectively with particular sequence in first paragraph sequence multiply each other or mould 2 adds the block of information after first paragraph spread spectrum, using each information bit in the information of carrying on broadcast channel respectively with particular sequence in second segment sequence multiply each other or mould 2 adds the block of information after second segment spread spectrum; Or first paragraph sequence and second segment sequence all adopt Fig. 8 B mode, network equipment using the information of carrying on broadcast channel successively with particular sequence in each of first paragraph sequence multiply each other or mould 2 adds the block of information after first paragraph spread spectrum, using the information of carrying on broadcast channel successively with particular sequence in each of second segment sequence multiply each other or mould 2 adds the block of information after second segment spread spectrum;

For the spread spectrum mode of the embodiment of the present invention, the particular sequence that embodiment of the present invention subscriber equipment adopts while separating spread processing according to following manner is definite:

Subscriber equipment starts constantly with the starting point of current wireless frame, according to the resource mapping method of broadcast channel, receives broadcast channel;

Subscriber equipment carries out related operation by least one code word in the broadcast channel in current receiver window and each particular sequence, determines the correlation corresponding with each particular sequence;

Such as having code word 1, code word 2 and code word 3, particular sequence 1, particular sequence 2 and particular sequence 3; Code word 1 is carried out related operation with particular sequence 1, particular sequence 2 and particular sequence 3 respectively, and obtaining correlation maximum in three correlations is A, corresponding particular sequence 2; Code word 2 is carried out related operation with particular sequence 1, particular sequence 2 and particular sequence 3 respectively, and obtaining correlation maximum in three correlations is B, corresponding particular sequence 2; Code word 3 is carried out related operation respectively at particular sequence 1, particular sequence 2 and particular sequence 3, obtaining correlation maximum in three correlations is C, corresponding particular sequence 1, particular sequence 2 is the particular sequences that have twice correlation maximum, and particular sequence 1 is the particular sequence of correlation maximum once.

If there is the threshold value of being greater than in the maximum correlation A of particular sequence 2 correspondences and B, the maximum correlation C of particular sequence 1 correspondence is greater than threshold value; If M is 1, selecting particular sequence 2 is the particular sequence adopting while separating spread processing; If M is 2, selecting particular sequence 2 and particular sequence 1 is the particular sequence adopting while separating spread processing.

In force, subscriber equipment can only be taken out a code word and each particular sequence and make related operation, also can take out 2 or a plurality of code word and each particular sequence carry out related calculation.No matter be several code words, finally finish after related operation, surpass in theory thresholding or correlation maximum should be same sequence.But due to noisy impact, may cause not being each code word and particular sequence finish relevant after, correlation maximum be all same particular sequence.So being preferably a plurality of code words carries out relevant to each particular sequence respectively: such as taking out several code words, each code word is made related operation with each particular sequence, determines the particular sequence that particular sequence that the maximum number of times occurring of correlation is maximum adopts when separating spread processing.

In force, when subscriber equipment is only made related operation with a code word and each particular sequence, if exist a plurality of correlations to be greater than the situation of setting thresholding, by the sequence successively from big to small of these correlations, and the particular sequence that before selecting, several correlations are corresponding forms a particular sequence group, and candidate's particular sequence that each particular sequence in this particular sequence group is adopted when separating spread processing.Or when subscriber equipment uses a plurality of code words to carry out related operation with each particular sequence respectively, number of times when correlation is maximum related value is by sorting from big to small, and select and be greater than the correlation of setting thresholding, then the particular sequence that before therefrom selecting, several correlations are corresponding forms a particular sequence group, and candidate's particular sequence that each particular sequence in this particular sequence group is adopted when separating spread processing.The number of selecting and the implementation complexity of UE have relation, selection more, and subscriber equipment is realized more complicated, but it is higher the accuracy of broadcast channel to be detected, can prevent the phenomenon that broadcast channel is undetected.Front several correlations of selecting, although these correlations have all surpassed thresholding, transmitting terminal has only adopted a spread spectrum that particular sequence carries out, this particular sequence may be only a particular sequence in this particular sequence group.Subscriber equipment can be chosen successively the particular sequence that a particular sequence adopts when separating spread processing, the row decoding of going forward side by side, and CRC check from particular sequence group.If CRC check success, illustrate that broadcast channel successfully detects, and other particular sequences that do not re-use in particular sequence group is separated spread spectrum, decoding, and CRC check; If CRC check failure, the particular sequence adopting when particular sequence is as solution spread processing next time by the selective sequential of particular sequence in particular sequence group, the row decoding of going forward side by side, and CRC check, and judge that whether CRC check is successful.Constantly repeat this process, until CRC check success.

Take Fig. 6 as example.Subscriber equipment current in T1 starts 12 radio frames of buffer memory constantly the data predefine resource location, and trial solution spread spectrum, in receiver window that T1 starts constantly, the data of (length of the receiver window here will guarantee the resource of the broadcast channel shining upon in the time period to receive) are attempted after all spread spectrum code words (distinguish 8 time periods have 8 spread spectrum code words), with predefined thresholding comparison, correlation that may be all is all below thresholding, therefore also without trial and error decoding, just can judge the not broadcast channel of real transmission of data in receiver window now.Subscriber equipment slides into T2 constantly by receive window, trial solution spread spectrum, likely exist correlation to surpass the situation of thresholding, now can just judge that broadcast channel may exist, and trial and error decoding, if not can by CRC check (due to real broadcast channel be from T3 constantly, the information constantly receiving from T2 is not broadcast channel completely, understand some raw information and miss, thus CRC will verification by); Subscriber equipment continues sliding window to the T3 moment, select the spread spectrum code word of correlation maximum, and decoding, after CRC check is correct, obtain the information of carrying, now by time period corresponding to particular sequence, can be obtained the interval of System Frame Number, by T3, constantly can determine it is the 3rd system-frame in this interval, can determine thus concrete System Frame Number value.If subscriber equipment still cannot complete correct decoding in a period of time, can attempt merging the broadcast channel detecting in two time periods.

Preferably, while selecting particular sequence, the sequence that in the situation that the time that can be chosen in does not line up, correlation is lower is as particular sequence.

The embodiment of the present invention has been carried out time slice by 1024 radio frames, and the time period of dividing is more, and the number of times that broadcast channel sends is more.If each radio frames is for sending broadcast channel, the scheme of the embodiment of the present invention just can through 12 detections at most.More crucial, when the scheme of the embodiment of the present invention detects at every turn, first separate spread spectrum also and thresholding ratio, if lower than thresholding, just think and there is no broadcast channel.If higher than thresholding, just further decoding CRC check, by the restriction of thresholding, can avoid each detection must complete CRC check, thereby reduced the complexity that subscriber equipment detects.

For network equipment, the information of carrying on broadcast channel being carried out to spread processing has three kinds of modes, and subscriber equipment carries out at least one code word in the broadcast channel in current receiver window and each particular sequence when relevant, also has three kinds of corresponding modes.

With a code word and a particular sequence, carry out related operation below, for example describes.

For mode one, subscriber equipment is directly made related operation by a code word and a particular sequence.

Take Fig. 4 as example, and such as original information bits is 1, particular sequence is 1101, and network equipment spread spectrum is complete is so exactly 1101, and these 4 bits link up and are called a code word.

Subscriber equipment, when receiving terminal solution spread spectrum, need to take this code word and frequency expansion sequence mould 2 to add so.Namely take 1101 these code words and the corresponding mould 2 of frequency expansion sequence 1101 to add, then summation, result is exactly 4, and correlation is 4.

The concrete methods of realizing of embodiment of the present invention spread spectrum has two kinds: if the symbol after modulation is done to spread spectrum, be that original information symbol and frequency expansion sequence made phase multiplication so, information bit refers to the symbol after modulation.If the information bit before modulation is done to spread spectrum, be that original information bit and frequency expansion sequence are made mould 2 and added computing so, information bit refers to information bit.

Because Fig. 4 does spread spectrum to the information bit before modulation, while therefore illustrating here, be that mould 2 adds computing, do not represent that the embodiment of the present invention can only add computing with mould 2.

Under this mode, similar to Figure 7, subscriber equipment first code word after by spread spectrum just can judge whether to need further to detect the broadcast channel in this receiver window: by first code word after spread spectrum and local frequency expansion sequence, make related operation, and and thresholding comparison, if be no more than thresholding, continue slip receiver window, attempt detecting next time, if surpassed thresholding, trial and error decoding CRC check.

For mode two, subscriber equipment, according to the resource mapping method of broadcast channel, takes out an information bit and forms a code word from each block of information, and this code word and each particular sequence are made to related operation.

Such as: original information bits is 101, and frequency expansion sequence is 1101, and the process of spread spectrum is original information bits to be done to mould 2 in every bit of frequency expansion sequence successively and add computing.The block of information forming after spread spectrum is 101,101,010,101.Make a start when resource mapping just according to the mapping successively of the bit of block of information (or to the symbol after block of information modulation) order.Receiving terminal obtains the block of information forming after spread spectrum according to the resource mapping method of broadcast channel, and extracts a code word of bit formation corresponding in each block of information, and this code word and each particular sequence are made to related operation.

For example extract first bit corresponding in each block of information out, can form code word 1101; Extract second bit corresponding in each block of information out, can form code word 0010; Extract the 3rd bit corresponding in each block of information out, can form code word 1101.

Under this mode, subscriber equipment need to be selected a corresponding bit in each block of information and out form a code word, this code word just represents that same information bit is by a frequency expansion sequence spread spectrum, then make related operation with local frequency expansion sequence, then with thresholding comparison, if be no more than thresholding, continue slip receiver window, attempt detecting next time, if surpassed thresholding, trial and error decoding CRC check.The benefit of the mode of this mapping is that subscriber equipment can just can detect by front m the block of information after m spread spectrum bit spread spectrum, there is no need all block of information to be collected and separates spread spectrum, decoding, CRC check again.

For mode three, subscriber equipment, according to the order of every cross-talk sequence in a particular sequence, carries out the processing of third phase pass or the 4th relevant treatment by a numeral and at least one subsequence; Wherein, it is that a code word is direct that third phase closes processing and at least one subsequence makes related operation, the 4th relevant treatment is the resource mapping method according to broadcast channel, takes out an information bit and form a code word from each block of information, and this code word and at least one subsequence are made to related operation.

For mode three, subscriber equipment can, with all subsequences of particular sequence, also can be used parton sequence.If use all subsequences, owing to using all subsequences, spreading factor is large, thereby can obtain higher spreading gain, but amount of calculation is larger, contrary parton sequence, spreading factor is little, the spreading gain obtaining is also limited, but amount of calculation is smaller, so can select as required the still little subsequence that spreading factor is large.

Embodiment bis-, by particular sequence implicit expression, notify.

In embodiment mono-, in the information of carrying in broadcast channel, comprise the configuration information of downlink system bandwidth and/or down mixing self-retransmission indicating channel, do not comprise System Frame Number.In embodiment bis-, the packets of information of carrying in broadcast channel contains the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel, and comprises system information; Or

The information of carrying in broadcast channel comprises system information; Or

In broadcast channel, do not carry any information, the information of carrying in broadcast channel is sky information.

In LTE system, system information is at PDSCH(Physical Downlink Shared Channel, downlink physical shared channel after subscriber equipment obtains broadcast channel at present) upper information of dispatching.Need subscriber equipment to detect the down control channel EPDCCH of down control channel PDCCH or enhancing, then obtain the schedule information of PDSCH, then detection system information on PDSCH.System information is equivalent to a container, and it can carry the SIB(System Information Block with different dispatching cycles, system information block).LTE system can be supported from SIB1 to SIB12 at present.But for certain user's equipment, such as power user's equipment, (power user's equipment is here exactly the equipment that need to work under the environment of coverage enhancement, due to the coverage enhancement of the embodiment of the present invention, the subscriber equipment of all embodiment of the present invention can be worked under basement etc. needs the environment of coverage enhancement, compare " ability is stronger " of domestic consumer's equipment, therefore use " power user's equipment " name herein), may only need SIB1, SIB2, and the information of some the bit indication in these two SIB is also unwanted to certain user's equipment.Therefore, the bit in SIB1 and SIB2 or other SIB information that may need can be combined, by broadcast channel, be carried, or carry together in conjunction with the information of original carrying in broadcast channel.

Embodiment bis-and embodiment once difference be, under two embodiment, there is variation in the bit number of the information of physical channel carrying.To in requisition for the size of spreading factor may be different, what need in a period of time that the resource data amount of mapping becomes in embodiment bis-is more.Or the quantity of the time period that also likely 1024 radio frames are divided into diminishes, and the radio frames quantitative change comprising in the time period is large.

Other processing procedures of embodiment bis-are identical with embodiment mono-, do not repeat them here.

Embodiment tri-, by the scrambler implicit expression of CRC, notify, the information of carrying in broadcast channel comprises the CRC of the specific scramble codes scrambling of the time period that is used to indicate the radio frames place that need to carry broadcast channel.

The CRC of specific scramble codes scrambling that network equipment is used to indicate employing the time period at the radio frames place that need to carry broadcast channel is placed in the information that broadcast channel carries, and in the radio frames that need to carry broadcast channel, to subscriber equipment, sends.

Accordingly, subscriber equipment, according to the specific scramble codes to the time period that is used to indicate the radio frames place that need to carry broadcast channel of the upper scrambling of the CRC in the information of carrying in the broadcast channel detecting, is determined the affiliated time period of radio frames of carrying broadcast channel.

CRC in the information of wherein, carrying in broadcast channel is obtained through scrambling by original CRC.

Original CRC calculates according to the information of carrying in broadcast channel.

In force, network equipment can only adopt the original CRC of specific scramble codes scrambling, the CRC in the information that obtains carrying in broadcast channel;

The original CRC of scrambler scrambling that network equipment can also adopt specific scramble codes and be used to indicate base station transmit antennas port, the CRC in the information that obtains carrying in broadcast channel.Wherein specific scramble codes can first adopt the original CRC of specific scramble codes scrambling as required with the scrambling order that is used to indicate the scrambler of base station transmit antennas port, and then is used to indicate the scrambler scrambling of base station transmit antennas port; Can also first adopt the original CRC of scrambler scrambling that is used to indicate base station transmit antennas port, and then adopt specific scramble codes scrambling.

The information of carrying in broadcast channel in embodiment tri-, except CRC, can also comprise:

The packets of information of carrying in broadcast channel is containing the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel; Or

The information of carrying in broadcast channel comprises system information.

In this embodiment, a corresponding scrambler of each time period, the scrambler that different time sections is corresponding different.

Such as the broadcast channel that the needs in the time period 1 send, the CRC of the scrambler scrambling that network equipment comprises time period 1 correspondence in the information of broadcast channels carry common; Subscriber equipment is used after this CRC of scrambler descrambling more like this, just can determine time period corresponding to scrambler of this CRC of scrambling according to the corresponding relation of time period and scrambler, and which time period that broadcast channel then detected with regard to knowing be time period.

The corresponding relation of time period and scrambler can stipulate in agreement, also can be by network side notifying user equipment.

Take Fig. 7 as example, 1024 radio frames are divided into several time periods, for example, be still divided into 8 time periods.Broadcast channel can be in 8 sends in any one or several time periods.While sending within the different time, CRC can be by different scrambler scramblings.The original information bits sequence of broadcast channels carry common is a ₀, a ₁, a ₂..., a _a-1wherein A is the length of information bit, for example the raw information of broadcast channels carry common only comprises 3 bit downlink bandwidth indications, the configuration information of 3 bit down mixing self-retransmission indicating channels, and during 10 idle bit of bit, A=16 can add CRC check bit p after original information bits sequence so ₀, p ₁, p ₂, p ₃..., p _l-1, for example add 16 bits CRC sequence time L=16, CRC can be used to the scrambling of section scrambler instruction time, for example, in the CRC of the PBCH sending within first time period, by the scrambler of scrambling, is the time corresponding in form 1 to be numbered 0 scrambler.

The process of adding scrambler is: c _k=(p _k+ x _t,k) mod2, t=0,1 ..., 7; K=0,1 ..., L-1.

In current LTE standard, adopted CRC to be used to the scrambler scrambling of marker antenna port.In embodiment tri-, CRC can not be instructed to the scrambler scrambling of antenna port here, also can on CRC is instructed to the basis of scrambler scrambling of antenna port, again be instructed to the scrambler scrambling of time period.Certainly, the CRC scrambler is here only an example, principle is to select a corresponding specific scrambler of each time period, and between different scramblers, guarantee that the distance between scrambler is the bigger the better (distance between scrambler refers to two quantity that scrambler corresponding bit is different as far as possible.For example, scrambler 1 is 0000, and scrambler 2 is 1111, and the distance between two scramblers is exactly 4 so).

Time period numbering

The CRC scrambler of broadcast channel

?	＜x _t,0,x _t,1,x _t,2,...,x _t,15＞
		0	<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>
1	<0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1>
		2	<1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0>
3	<0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1>
		4	<1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0>
5	<0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1>
		6	<1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0>
7	<1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1>

Form 1: the CRC scrambler of broadcast channel.

Preferably, in implementing three, while sending broadcast channel within each time period, can adopt the sending mode of enhancing.The resource that can use when carrying out rate-matched can (as 128 radio frames) be distributed within 1 time period.

Because in a period of time, used spread spectrum, despreading has spreading gain, so can strengthen covering in a period of time.

For implementing three, because subscriber equipment does not know still to detect the particular location of broadcast channel according to the resource mapping method of the broadcast channel pre-seting, also can attempt the scrambler of all possible scrambling CRC, until CRC check is correct.

In force, embodiment tri-can with embodiment mono-and/or embodiment bis-and embodiment tri-combinations.When adopting the mode of transmitting-receiving of spread spectrum, adopt the CRC that comprises scrambler scrambling corresponding to time period, can be used as like this twin check, allow subscriber equipment obtain correct information.

Certainly, for embodiment tri-, can not be combined with other embodiment yet, adopting the particular sequence of spread processing like this can be the particular sequence corresponding with each time period, and particular sequence corresponding to each time period can be all identical, also can part identical, can be entirely not identical yet.

Such as network equipment adopts particular sequence corresponding to described time period, the information of carrying in broadcast channel is carried out to spread processing; Wherein, particular sequence corresponding to each time period in the cycle.

In embodiment tri-, network equipment carries out spread processing, and subscriber equipment is identical with embodiment mono-in the mode of separating spread processing, does not repeat them here.

For above-described embodiment three, a kind of preferably mode is: if use identical particular sequence to carry out spread spectrum in each time period, for example spreading factor is 128, and can be 128 be all 1 bit sequence to this frequency expansion sequence so.While carrying out spread spectrum with this bit sequence, be equivalent to the sequence before spread spectrum to carry out repeating mapping.

For example original information bits position 101, and frequency expansion sequence is 1111, is exactly so after spread spectrum:

101101101101, be equivalent to original information sequence 101 to do 4 repeating mapping or transmission.

In above-described embodiment one～embodiment tri-, the information of carrying in broadcast channel is fewer, and the number of times that can send within the unit interval is just more, is not increasing under the prerequisite of resource like this, can increase the number of times of transmission, thereby improve the probability that subscriber equipment correctly receives broadcast channel.

Wherein, the network equipment of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN(relaying) equipment can also be other network equipment.

As shown in Figure 9, the method for embodiment of the present invention transmission broadcast channel comprises the following steps:

Step 901, network equipment need to carry broadcast channel radio frames in the determining time;

Step 902, network equipment carry out after spread processing the information of carrying in broadcast channel, in definite radio frames, to subscriber equipment, send broadcast channel.

In step 901, for a time period, network equipment, according to the corresponding relation of time period and radio frames, needs to carry the radio frames of broadcast channel using corresponding radio frames of this time period in this time period.

In force, network equipment also needs notifying user equipment need to carry the affiliated time period of radio frames of broadcast channel, and concrete advice method has a variety of, enumerates several below:

Mode one, by particular sequence, notify.

Network equipment adopts particular sequence corresponding to described time period to carry out spread processing to the information of carrying in broadcast channel;

Wherein, particular sequence corresponding to each time period in the cycle.

Preferably, quadrature between particular sequence corresponding to each time period in the cycle.

Mode two, by CRC, notify.

The information of carrying in broadcast channel comprises the CRC of the specific scramble codes scrambling of the time period that is used to indicate the radio frames place that need to carry broadcast channel.

Preferably, CRC is for only passing through the CRC of specific scramble codes scrambling; Or

CRC is through being used to indicate the scrambler of base station transmit antennas port and the CRC of particular sequence scrambling.

For mode one and mode two, preferably, the packets of information of carrying in broadcast channel is containing the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel; Or

The information of carrying in broadcast channel comprises system information.

For mode one, preferably, in broadcast channel, do not carry any information.

Preferably, when network equipment sends broadcast channel to subscriber equipment in definite radio frames, network equipment, after original information stream is carried out to chnnel coding, before broadcast channel is carried out to resource mapping, carries out spread processing to the information of carrying on broadcast channel.

Wherein, original information stream refers to after the raw information being carried on broadcast channel and adds the information flow forming after CRC.

Preferably, when network equipment carries out spread processing to the information of carrying on broadcast channel, each information bit in the information of carrying on broadcast channel is multiplied each other with particular sequence network equipment successively or mould 2 adds; Or

Network equipment by the information of carrying on broadcast channel successively with particular sequence in each multiply each other or mould 2 adds; Or

Network equipment, according to the order of every cross-talk sequence in particular sequence, carries out the first product processing or the processing of the second product by the information of carrying on broadcast channel and each subsequence; Wherein, to process be each information bit in the information of carrying on broadcast channel to be multiplied each other with subsequence successively or mould 2 adds to the first product; The second product process be by the information of carrying on broadcast channel successively with subsequence in each multiply each other or mould 2 adds.

For mode two, preferably, network equipment adopts particular sequence corresponding to described time period to carry out spread processing to the information of carrying in broadcast channel; Wherein, particular sequence corresponding to each time period in the cycle.

As shown in figure 10, the method for embodiment of the present invention reception broadcast channel comprises the following steps:

Step 1010, subscriber equipment constantly receive broadcast channel with the starting point of current wireless frame, and the information of carrying in broadcast channel are detected;

Step 1011, subscriber equipment are separated spread processing to the information of carrying in the broadcast channel detecting.

Preferably, subscriber equipment receives broadcast channel constantly with the starting point of current wireless frame, and after the information of carrying in broadcast channel is detected, can also be according to the corresponding relation of time period and radio frames, the radio frames that definite radio frames corresponding to time period that broadcast channel detected is carrying broadcast channel; According to the time period under the radio frames of the radio frames of carrying broadcast channel and carrying broadcast channel, determine System Frame Number.

Wherein, subscriber equipment determines that the mode of the time period that the radio frames of carrying broadcast channel is affiliated has a lot, enumerates several below:

Mode one, by particular sequence, determine.

Subscriber equipment, according to the corresponding relation of time period and particular sequence, is determined when the information of carrying in the broadcast channel detecting is separated to spread processing, the affiliated time period of radio frames that the time period that the particular sequence of employing is corresponding is carrying broadcast channel.

Mode two, by CRC, determine.

Subscriber equipment, according to the specific scramble codes to the time period that is used to indicate the radio frames place that need to carry broadcast channel of the upper scrambling of the CRC in the information of carrying in the broadcast channel detecting, is determined the affiliated time period of radio frames of carrying broadcast channel.

The information of carrying in broadcast channel comprises system information.

For mode one, preferably, in broadcast channel, do not carry any information.

Preferably, subscriber equipment is separated spread processing to the information of carrying on broadcast channel, also comprises:

Subscriber equipment, after carrying out resource demapping, before carrying out channel decoding, adopts particular sequence to separate spread processing to the information of carrying on broadcast channel.

The particular sequence adopting when preferably, subscriber equipment is separated spread processing according to following manner is definite:

Alternatively, when subscriber equipment is only made related operation with a code word and each particular sequence, if exist a plurality of correlations to be greater than the situation of setting thresholding, by the sequence successively from big to small of these correlations, and the particular sequence that before selecting, several correlations are corresponding forms a particular sequence group, and candidate's particular sequence that each particular sequence in this particular sequence group is adopted when separating spread processing.Or when subscriber equipment uses a plurality of code words to carry out related operation with each particular sequence respectively, number of times when correlation is maximum related value is by sorting from big to small, and select and be greater than the correlation of setting thresholding, then the particular sequence that before therefrom selecting, several correlations are corresponding forms a particular sequence group, and candidate's particular sequence that each particular sequence in this particular sequence group is adopted when separating spread processing.The number of selecting and the implementation complexity of UE have relation, selection more, and subscriber equipment is realized more complicated, but it is higher the accuracy of broadcast channel to be detected, can prevent the phenomenon that broadcast channel is undetected.Front several correlations of selecting, although these correlations have all surpassed thresholding, transmitting terminal has only adopted a spread spectrum that particular sequence carries out, this particular sequence may be only a particular sequence in this particular sequence group.Subscriber equipment can be chosen successively the particular sequence that a particular sequence adopts when separating spread processing, the row decoding of going forward side by side, and CRC check from particular sequence group.If CRC check success, illustrate that broadcast channel successfully detects, and other particular sequences that do not re-use in particular sequence group is separated spread spectrum, decoding, and CRC check; If CRC check failure, the particular sequence adopting when particular sequence is as solution spread processing next time by the selective sequential of particular sequence in particular sequence group, the row decoding of going forward side by side, and CRC check, and judge that whether CRC check is successful.Constantly repeat this process, until CRC check success.

Preferably, subscriber equipment carries out related operation according to following manner by a code word and a particular sequence in the broadcast channel in current receiver window, comprising:

Subscriber equipment is directly made related operation by a code word and a particular sequence; Or

Subscriber equipment, according to the resource mapping method of broadcast channel, takes out an information bit and forms a code word from each block of information, and this code word and each particular sequence are made to related operation; Or

Subscriber equipment, according to the order of every cross-talk sequence in a particular sequence, carries out the processing of third phase pass or the 4th relevant treatment by a numeral and at least one subsequence; Wherein, it is that a code word is direct that third phase closes processing and at least one subsequence makes related operation, the 4th relevant treatment is the resource mapping method according to broadcast channel, takes out an information bit and form a code word from each block of information, and this code word and at least one subsequence are made to related operation.

Based on same inventive concept, a kind of system, network equipment and subscriber equipment of transmitting broadcasting channel are also provided in the embodiment of the present invention, owing to having similar principle to the method for the embodiment of the present invention, so the enforcement of these equipment can, referring to the enforcement of method, repeat part and repeat no more.

As shown in figure 11, the system of embodiment of the present invention transmitting broadcasting channel comprises: network equipment 1100 and subscriber equipment 1110.

Network equipment 1100, the radio frames that needs to carry broadcast channel for the determining time; The information of carrying in broadcast channel is carried out after spread processing, in definite radio frames, to subscriber equipment, send broadcast channel;

Subscriber equipment 1110, receives broadcast channel constantly for the starting point with current wireless frame, and the information of carrying in broadcast channel is detected, and the information of carrying in the broadcast channel detecting is separated to spread processing.

As shown in figure 12, the network equipment of embodiment of the present invention the first transmission broadcast channel comprises: determination module 1210 and sending module 1220.

Determination module 1210, the radio frames that needs to carry broadcast channel for the determining time;

Sending module 1220, carries out after spread processing for the information that broadcast channel is carried, and in definite radio frames, to subscriber equipment, sends broadcast channel.

Preferably, determination module 1210 specifically for:

For a time period, according to the corresponding relation of time period and radio frames, corresponding radio frames of this time period is needed to carry the radio frames of broadcast channel in this time period.

Preferably, sending module 1220 specifically for:

Wherein, particular sequence corresponding to each time period in the cycle.

Preferably, sending module 1220 specifically for:

Wherein, particular sequence corresponding to each time period in the cycle.

The information of preferably, carrying in broadcast channel comprises the CRC of the specific scramble codes scrambling of the time period that is used to indicate the radio frames place that need to carry broadcast channel.

Preferably, sending module 1220 specifically for:

As shown in figure 13, the subscriber equipment of embodiment of the present invention the first reception broadcast channel comprises: detection module 1310 and receiver module 1320.

Detection module 1310, receives broadcast channel constantly for the starting point with current wireless frame, and the information of carrying in broadcast channel is detected;

Receiver module 1320, separates spread processing for the information that the broadcast channel detecting is carried.

Preferably, receiver module 1320 also for:

Preferably, receiver module 1320 specifically for:

Preferably, receiver module 1320 also for:

Preferably, receiver module 1320 specifically for:

As shown in figure 14, the network equipment of embodiment of the present invention the second transmission broadcast channel comprises: processor 1410 and reflector 1420.

Processor 1410, the radio frames that needs to carry broadcast channel for the determining time, and definite radio frames is notified to reflector 1420;

Reflector 1420, carries out after spread processing for the information that broadcast channel is carried, and in the radio frames of processor 1410 notices, to subscriber equipment, sends broadcast channel.

Preferably, processor 1410 also for:

Preferably, reflector 1420 specifically for:

Adopt particular sequence corresponding to time period to carry out spread processing to the information of carrying in broadcast channel, in the radio frames of processor 1410 notices, to subscriber equipment, send and adopt the particular sequence corresponding to time period at definite radio frames place to carry out the information of carrying in the broadcast channel after spread spectrum;

Wherein, particular sequence corresponding to each time period in the cycle.

Preferably, reflector 1420 specifically for:

Adopt particular sequence corresponding to time period to carry out spread processing to the information of carrying in broadcast channel;

Wherein, particular sequence corresponding to each time period in the cycle.

Preferably, reflector 1420 specifically for:

As shown in figure 15, the subscriber equipment of embodiment of the present invention the second reception broadcast channel comprises:

Processor 1510, receives broadcast channel constantly for the starting point with current wireless frame, and the information of carrying in broadcast channel is detected, after information being detected, and Notification Sink 1520;

Receiver 1520, for after receiving the notice of processor 1510, separates spread processing to the information of carrying in the broadcast channel detecting.

Preferably, receiver 1520 specifically for:

Preferably, receiver 1520 also for:

Preferably, receiver 1520 specifically for:

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims

1. a method that sends broadcast channel, is characterized in that, the method comprises:

2. the method for claim 1, is characterized in that, described network equipment needs to carry the radio frames of broadcast channel in the determining time, comprising:

3. method as claimed in claim 1 or 2, is characterized in that, described network equipment carries out spread processing to the information of carrying on broadcast channel, comprising:

Wherein, particular sequence corresponding to each time period in the cycle.

4. method as claimed in claim 3, is characterized in that, quadrature between particular sequence corresponding to each time period in the cycle.

5. method as claimed in claim 1 or 2, is characterized in that, described network equipment sends broadcast channel to subscriber equipment and comprises in definite radio frames:

Wherein, particular sequence corresponding to each time period in the cycle.

6. the method as described in as arbitrary in claim 1～5, is characterized in that, the information of carrying in described broadcast channel comprises the cyclic redundancy check bits CRC of the specific scramble codes scrambling that is used to indicate the described time period.

7. method as claimed in claim 6, is characterized in that, described CRC is for only passing through the CRC of described specific scramble codes scrambling; Or

Described CRC is through being used to indicate the scrambler of base station transmit antennas port and the CRC of described particular sequence scrambling.

8. the method as described in as arbitrary in claim 1～7, is characterized in that, the packets of information of carrying in described broadcast channel is containing the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel; Or

9. the method as described in as arbitrary in claim 1～5, is characterized in that, the information of carrying in described broadcast channel is sky information.

10. the method as described in as arbitrary in claim 1～9, is characterized in that, described network equipment carries out spread processing to the information of carrying on broadcast channel, comprising:

11. methods as described in as arbitrary in claim 1～10, is characterized in that, described network equipment carries out spread processing to the information of carrying on broadcast channel, comprising:

12. 1 kinds of methods that receive broadcast channel, is characterized in that, the method comprises:

13. methods as claimed in claim 12, is characterized in that, described subscriber equipment receives broadcast channel constantly with the starting point of current wireless frame, and after the information of carrying in broadcast channel is detected, also comprise:

14. methods as claimed in claim 13, is characterized in that, described subscriber equipment is determined the time period under the radio frames of carrying broadcast channel according to following manner:

15. methods as described in claim 13 or 14, is characterized in that, described subscriber equipment is determined the time period under the radio frames of carrying broadcast channel according to following manner:

16. methods as claimed in claim 15, is characterized in that, described CRC is for only passing through the CRC of described specific scramble codes scrambling; Or

17. methods as described in as arbitrary in claim 12～16, is characterized in that, the packets of information of carrying in described broadcast channel is containing the configuration information of downlink bandwidth indication information and/or down mixing self-retransmission indicating channel; Or

The information of carrying in broadcast channel comprises system information.

18. methods as described in as arbitrary in claim 12～14, is characterized in that, the information of carrying in broadcast channel is sky information.

19. methods as described in as arbitrary in claim 12～18, is characterized in that, described subscriber equipment is separated spread processing to the information of carrying on broadcast channel, comprising:

20. methods as claimed in claim 19, is characterized in that, the particular sequence that described subscriber equipment adopts while separating spread processing according to following manner is definite:

21. methods as claimed in claim 20, is characterized in that, described subscriber equipment carries out code word in the broadcast channel in current receiver window and a particular sequence according to following manner relevant, comprising:

Described subscriber equipment is directly done relevant by a code word to a particular sequence; Or

22. 1 kinds of network equipments that send broadcast channel, is characterized in that, this network equipment comprises:

23. network equipments as claimed in claim 22, is characterized in that, described determination module specifically for:

24. network equipments as described in claim 22 or 23, is characterized in that, described sending module specifically for:

Wherein, particular sequence corresponding to each time period in the cycle.

25. network equipments as described in claim 22 or 23, is characterized in that, described sending module specifically for:

Wherein, particular sequence corresponding to each time period in the cycle.

26. network equipments as described in as arbitrary in claim 22～25, is characterized in that, the information of carrying in described broadcast channel comprises the cyclic redundancy check bits CRC of the specific scramble codes scrambling that is used to indicate the described time period.

27. network equipments as described in as arbitrary in claim 22～26, is characterized in that, described sending module specifically for:

28. network equipments as described in as arbitrary in claim 22～27, is characterized in that, described sending module specifically for:

29. 1 kinds of subscriber equipmenies that receive broadcast channel, is characterized in that, this subscriber equipment comprises:

30. subscriber equipmenies as claimed in claim 29, is characterized in that, described receiver module also for:

31. subscriber equipmenies as claimed in claim 30, is characterized in that, described receiver module specifically for:

32. subscriber equipmenies as described in claim 30 or 31, is characterized in that, described receiver module specifically for:

33. subscriber equipmenies as described in as arbitrary in claim 29～32, is characterized in that, described receiver module also for:

34. subscriber equipmenies as described in as arbitrary in claim 29～32, is characterized in that, described receiver module also for:

35. subscriber equipmenies as claimed in claim 34, is characterized in that, described receiver module specifically for:

36. 1 kinds of systems that receive broadcast channel, is characterized in that, this system comprises: