CN107347213A

CN107347213A - A kind of downlink system bandwidth indicating means, base station and terminal

Info

Publication number: CN107347213A
Application number: CN201610293822.2A
Authority: CN
Inventors: 刘星; 毕峰; 张峻峰; 郝鹏
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-05-05
Filing date: 2016-05-05
Publication date: 2017-11-14
Also published as: WO2017190631A1

Abstract

A kind of downlink system bandwidth indicating means, including：Base station sends synchronizing signal and/or Physical Broadcast Channel according to predefined configuration, wherein the synchronizing signal and/or Physical Broadcast Channel indicating downlink system bandwidth information, the predefined configuration includes：Predefined synchronizing signal structure and/or predefined Physical Broadcast Channel sending method.This programme can reduce the signaling consumption of system broadcast message.

Description

A kind of downlink system bandwidth indicating means, base station and terminal

Technical field

The application relates to, but are not limited to moving communicating field, espespecially a kind of downlink system bandwidth indicating means, base station and end End.

Background technology

With the continuous progress of radiotechnics, various radio traffics emerge in multitude, and radio traffic institute The frequency spectrum resource of support is limited, and bandwidth demand is continuously increased in face of people, what traditional business correspondence mainly used Frequency spectrum resource shows extremely nervous situation between 300MHz~3GHz, can not meet the needs of future wireless system.

In future wireless system, it will the higher load of carrier frequency used by using than forth generation (4G) communication system Wave frequency rate is communicated, such as 28GHz, 45GHz etc., 5G new (a new generation) RAT (Radio Access Technology, Wireless access technology) the potential working frequency range of system reaches 100GHz, the business scenario supported according to it, data rate etc. The difference of demand, the multiple systems bandwidth that potential support does not wait from tens MHz to several GHz, with LTE (Long Term Evolution, Long Term Evolution) to compare, the configuration categories of downlink system bandwidth are more abundant, more flexibly.What need to consider with Kind mode indicates the system bandwidth of current system to terminal.

In LTE system, synchronizing signal and Physical Broadcast Channel are fixed and take middle 6 RB (Resource Block, money Source block), terminal determines center frequency point by the detection to synchronizing signal, and downlink system bandwidth is obtained in Physical Broadcast Channel Configuration.Downlink system band width configuration information takes 3bit, and the instruction explicit to terminal is any of following configuration：6、15、25、 50、75、100RB.Consider the downlink system band width configuration diversity of high band, if continuing to use this indicating mode, potentially need Increase indication signaling expense.

On the other hand, because high frequency channel has, Free propagation loss is larger, and easily by oxygen absorption, being declined by rain, it is big to influence The shortcomings of, have a strong impact on the covering performance of high frequency communication system.But because carrier frequency corresponding to high-frequency communication has more Short wavelength, it is possible to it can accommodate more antenna elements on guarantor unit's area, and mean can for more antenna elements Antenna gain is improved in the method using wave beam forming, so as to ensureing the covering performance of high-frequency communication.

After the method for wave beam forming, transmitting terminal can concentrate emitted energy in one direction, and in other sides Upward energy very little does not have, that is to say, that each wave beam has the directionality of itself, and each wave beam can only cover necessarily Terminal on direction, transmitting terminal are that base station needs to launch multiple wave beams and could complete to cover all around.If obtain preferably Beam shape-endowing weight value, for base station, then need the channel condition information or weights of terminal measurement and feeding back downlink；For , it is necessary to the channel condition information or weights of base station measurement and feeding back uplink for terminal, so as to ensure that base station can use most Excellent wave beam sends downlink business, and terminal can also use optimal wave beam to send uplink service.

Now, role of the wave beam forming in high-frequency communication from the wave beam forming in legacy cellular net in a network is different, Wave beam forming is introduced into after subscriber access system in Cellular Networks, to improve the handling capacity of data transfer；And in high band, entirely To or the synchronizing signal transmitting of sector-level would become hard to meet covering demand, this requires that cell discovery phase just needs enabled wave beam to assign Shape, that is to say, that terminal needs to carry out the access based on wave beam.In this case, system broadcast message will be in multiple wave beams Repeat to send on direction, further increase the signaling consumption of system broadcast message.

The content of the invention

The embodiment of the present invention provides a kind of downlink system bandwidth indicating means, base station and terminal, is disappeared with reducing system broadcasts The signaling consumption of breath.

The embodiments of the invention provide a kind of downlink system bandwidth indicating means, including：

Base station sends synchronizing signal and/or Physical Broadcast Channel according to predefined configuration, wherein the synchronizing signal and/ Or Physical Broadcast Channel indicating downlink system bandwidth information, the predefined configuration include：Predefined synchronizing signal structure And/or predefined Physical Broadcast Channel sending method.

Alternatively, the predefined configuration, including：

When with synchronizing signal structure indicating downlink system bandwidth information, synchronizing signal characteristic parameter value is predefined with The mapping relations of row system bandwidth；

Or when with Physical Broadcast Channel sending method indicating downlink system bandwidth information, predefine downlink system band Width index and the mapping relations of downlink system bandwidth, or, the mapping relations of predefined verification sequence and downlink system bandwidth；

Or when with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions downlink system bandwidth information When, predefine synchronizing signal characteristic parameter value and closed with the combination of downlink system bandwidth index and the mapping of downlink system bandwidth System, or, predefine the combination of synchronizing signal characteristic parameter value and verification sequence and the mapping relations of downlink system bandwidth.

Alternatively, when with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions downlink system bandwidth information When, downlink system bandwidth value is grouped, each specific downlink system bandwidth value is by the unique expression of index in group index and group；Its In, the mark of downlink system sets of bandwidths of the group index where the downlink system bandwidth；Index is described in described group The mark of group inner element where downlink system bandwidth.

Alternatively, the synchronizing signal structure is used to indicate the downlink system bandwidth group index, the physical broadcast letter Road sending method is used to indicate to index in the group of the downlink system bandwidth；

Or the synchronizing signal structure is used to indicate to index in the group of the downlink system bandwidth, the physical broadcast Channel sending method is used to indicate the downlink system bandwidth group index.

Alternatively, the Physical Broadcast Channel sending method includes：Downlink system bandwidth is included in system message sequence Index, or the verification sequence related to downlink system bandwidth is added in system message sequence.

Alternatively, the synchronizing signal structure includes any one or more in following characteristics parameter：

Synchronous signal sequence length, synchronizing signal frequency domain width, the frequency domain interval of adjacent sync signal in same symbol, together The quantity of synchronizing signal in one symbol, the frequency shift (FS) in distinct symbols between synchronizing signal, in distinct symbols between synchronizing signal Frequency domain width differential, the frequency shift (FS) between master sync signal and auxiliary synchronous signals, master sync signal and auxiliary synchronous signals frequency domain are wide The difference of degree, the difference of master sync signal and auxiliary synchronous signals sequence length, master sync signal synchronous is believed with auxiliary in same symbol Frequency domain interval between number, the time domain interval of adjacent sync signal, the time domain interval between master sync signal and auxiliary synchronous signals.

The embodiment of the present invention also provides a kind of base station, including：

Sending module, synchronizing signal and/or Physical Broadcast Channel are sent according to predefined configuration, wherein the synchronous letter Number and/or Physical Broadcast Channel indicating downlink system bandwidth information, it is described it is predefined configuration include：Predefined synchronizing signal Structure and/or predefined Physical Broadcast Channel sending method.

Alternatively, the configuration includes：When with synchronizing signal structure indicating downlink system bandwidth information, predefine synchronous The mapping relations of signal characteristic parameter value and downlink system bandwidth；Or under being indicated with Physical Broadcast Channel sending method During row system bandwidth information, downlink system bandwidth index and the mapping relations of downlink system bandwidth are predefined, or, predefine school Test the mapping relations of sequence and downlink system bandwidth；Or join when with synchronizing signal structure and Physical Broadcast Channel sending method When closing indicating downlink system bandwidth information, predefine the combination of synchronizing signal characteristic parameter value and downlink system bandwidth index with The mapping relations of downlink system bandwidth, or, predefine the combination of synchronizing signal characteristic parameter value and verification sequence with it is descending The mapping relations of system bandwidth.

Alternatively, predefine when with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions downlink system band During wide information, downlink system bandwidth value is grouped, each specific downlink system bandwidth value is unique by group index and index in group Represent；Wherein, the mark of downlink system sets of bandwidths of the group index where the downlink system bandwidth；Indexed in described group The mark of group inner element where the downlink system bandwidth.

Alternatively, the predefined synchronizing signal structure is used to indicate the downlink system bandwidth group index, the thing Reason broadcast channel sending method is used to indicate to index in the group of the downlink system bandwidth；Or the synchronizing signal structure is used Indexed in the group for indicating the downlink system bandwidth, the Physical Broadcast Channel sending method is used to indicate the downlink system Bandwidth group index.

Alternatively, the predefined Physical Broadcast Channel sending method includes：Comprising descending in system message sequence System bandwidth is indexed, or the verification sequence related to downlink system bandwidth is added in system message sequence.

Alternatively, synchronizing signal structure is predefined including any one or more in following characteristics parameter：Synchronizing signal Sequence length, synchronizing signal frequency domain width, the frequency domain interval of adjacent sync signal in same symbol, synchronizing signal in same symbol Quantity, the frequency shift (FS) in distinct symbols between synchronizing signal, the frequency domain width differential in distinct symbols between synchronizing signal is main same Walk the frequency shift (FS) between signal and auxiliary synchronous signals, the difference of master sync signal and auxiliary synchronous signals frequency domain width, main synchronous letter Difference number with auxiliary synchronous signals sequence length, the frequency domain interval in same symbol between master sync signal and auxiliary synchronous signals, phase The time domain interval of adjacent synchronizing signal, the time domain interval between master sync signal and auxiliary synchronous signals.

The embodiment of the present invention also provides a kind of downlink system bandwidth indicating means, including：

Terminal receives synchronizing signal and/or Physical Broadcast Channel；

The terminal is by identifying that synchronizing signal structure and/or Physical Broadcast Channel sending method obtain downlink system bandwidth Information.

Alternatively, when terminal is by identifying that Physical Broadcast Channel sending method obtains downlink system bandwidth information, receive Physical Broadcast Channel, obtain the downlink system bandwidth index of the Physical Broadcast Channel instruction, the different downlink system band Width index corresponds to different downlink system bandwidth；It is different or the terminal recognition goes out the verification sequence of system message sequence The verification sequence of the system message sequence corresponds to different downlink system bandwidth.

Alternatively, in addition to：

The terminal pre-saves any one or more in following predefined mapping relations：Synchronizing signal feature is joined The mapping relations of number value and downlink system bandwidth；Or downlink system bandwidth index and the mapping relations of downlink system bandwidth； Or the mapping relations of the verification sequence of system message sequence and downlink system bandwidth；Or synchronizing signal characteristic parameter value Combination and the mapping relations of downlink system bandwidth with downlink system bandwidth index；Or synchronizing signal characteristic parameter value with The combination of system message sequence check sequence and the mapping relations of downlink system bandwidth.

Alternatively, when the terminal is by identifying that synchronizing signal structure and Physical Broadcast Channel sending method obtain descending system During bandwidth information of uniting, obtain and indexed in group index and group, and then obtain the downlink system bandwidth information, the downlink system band Width values are grouped in advance, and each downlink system bandwidth value is uniquely represented by group index and index in group, wherein, the group index is The mark of downlink system sets of bandwidths where the downlink system bandwidth；Index is where the downlink system bandwidth in described group The mark of group inner element.

The embodiment of the present invention also provides a kind of terminal, including：

Receiving module, for receiving synchronizing signal and/or Physical Broadcast Channel；

Acquisition module, by identifying that synchronizing signal structure and/or Physical Broadcast Channel sending method obtain downlink system band Wide information.

Alternatively, the acquisition module, believe when by identifying that Physical Broadcast Channel sending method obtains downlink system bandwidth During breath, for receiving Physical Broadcast Channel, the downlink system bandwidth index of the Physical Broadcast Channel instruction, the difference are obtained Downlink system bandwidth index correspond to different downlink system bandwidth；Or for identifying the verification sequence of system message sequence Row, the verification sequence of the different system message sequences correspond to different downlink system bandwidth.

Alternatively, in addition to：

Memory module, it is any one or more in following predefined mapping relations for pre-saving：Synchronizing signal The mapping relations of characteristic parameter value and downlink system bandwidth；Or downlink system bandwidth index reflects with downlink system bandwidth Penetrate relation；Or the mapping relations of the verification sequence of system message sequence and downlink system bandwidth；Or synchronizing signal feature Combination and the mapping relations of downlink system bandwidth of the parameter value with downlink system bandwidth index；Or synchronizing signal feature ginseng Number value and the combination of system message sequence check sequence and the mapping relations of downlink system bandwidth.

Alternatively, the acquisition module, by identifying under synchronizing signal structure and the acquisition of Physical Broadcast Channel sending method During row system bandwidth information, indexed for obtaining in group index and group, and then obtain the downlink system bandwidth information, under described Row system bandwidth value is grouped in advance, and each downlink system bandwidth value is uniquely represented by group index and index in group, wherein, it is described The mark of downlink system sets of bandwidths of the group index where the downlink system bandwidth；Index is the downlink system in described group The mark of group inner element where bandwidth.

The embodiment of the present invention provides a kind of downlink system bandwidth indicating means, base station and terminal, it is possible to reduce system broadcasts The signaling consumption of message.

Brief description of the drawings

Fig. 1 is the flow chart of the downlink system bandwidth indicating means of the base station side of the embodiment of the present invention；

Fig. 2 is a kind of flow chart of downlink system bandwidth indicating means of the end side of the embodiment of the present invention；

Fig. 3 is the synchronizing signal structural representation corresponding to the neutron embodiment 1.1 of embodiment 1；

Fig. 4 is the synchronizing signal structural representation corresponding to the neutron embodiment 1.2 of embodiment 1；

Fig. 5 is the synchronizing signal structural representation corresponding to the neutron embodiment 1.3 of embodiment 1；

Fig. 6 is a kind of synchronizing signal structural representation corresponding to the neutron embodiment 1.4 of embodiment 1；

Fig. 7 is another synchronizing signal structural representation corresponding to the neutron embodiment 1.4 of embodiment 1；

Fig. 8 is the synchronizing signal structural representation corresponding to the neutron embodiment 1.5 of embodiment 1；

Fig. 9 is the synchronizing signal structural representation corresponding to the neutron embodiment 1.7 of embodiment 1；

The schematic diagram of the base station of Figure 10 embodiment of the present invention；

Figure 11 is the schematic diagram of the terminal of the embodiment of the present invention.

Embodiment

For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application Feature can mutually be combined.

Fig. 1 is the flow chart of the downlink system bandwidth indicating means of the base station side of the embodiment of the present invention, as shown in figure 1, this The method of embodiment includes：

S11, base station send synchronizing signal and/or Physical Broadcast Channel according to predefined configuration, wherein the synchronous letter Number and/or Physical Broadcast Channel indicating downlink system bandwidth information, the configuration include：Predefined synchronizing signal structure and/ Or predefined Physical Broadcast Channel sending method.

Alternatively, can also include before step S11：

The configuration is predefined, including：Base station predefines the configuration, or, other entity (such as core-network sides of network side Entity：Mobile management entity (MME, Mobile Managenment Entity), gateway (SGW, Service Getway), grouped data network gateway (PGW：PDN Gateway (Packet Data Network)) etc., or, webmaster side Entity：Equipment management entity (EMS, Equipment management entity), network management entity (NMS, Network Management entity), Operation Administration and Maintenance system (OAM, Operation Administration and Maintenance the configuration)) is predefined, or, the configuration is manually predefined, or, match somebody with somebody in the protocol described in regulation Put.

The predefined configuration is known to the base station and the terminal.

Alternatively, the predefined configuration, including：

When with synchronizing signal structure indicating downlink system bandwidth information, synchronizing signal characteristic parameter and descending system are predefined Command wide mapping relations；

Wherein, when with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions downlink system bandwidth information When, downlink system bandwidth value is grouped, each specific downlink system bandwidth value is by the unique expression of index in group index and group；Its In, the mark of downlink system sets of bandwidths of the group index where the downlink system bandwidth；Index is described in described group The mark of group inner element where downlink system bandwidth.

Wherein, the Physical Broadcast Channel sending method in step S11 includes：Comprising descending in system message sequence System bandwidth is indexed, or the verification sequence related to downlink system bandwidth is added in system message sequence.

The synchronizing signal structure includes any one or more in following characteristics parameter：

Fig. 2 is a kind of flow chart of downlink system bandwidth indicating means of the end side of the embodiment of the present invention, such as Fig. 2 institutes Show, the method for the present embodiment includes：

S21, terminal receive synchronizing signal and/or Physical Broadcast Channel；

S22, the terminal are by identifying that synchronizing signal structure and/or Physical Broadcast Channel sending method obtain downlink system Bandwidth information.

Alternatively, methods described also includes：

Wherein, the synchronizing signal structure includes any one or more in following characteristics parameter：

The present processes are described in detail with several embodiments below.

Embodiment 1

The present embodiment includes sub- embodiment 1.1-1.8, under only independently being indicated by the different structure of synchronizing signal The mode of row system bandwidth：

In this manner, system predefines the mapping of characteristic parameter value and downlink system bandwidth in synchronizing signal structure Relation, the mapping relations are that base station determines synchronizing signal according to current downlink system bandwidth known to base station side and end side Structure is sent, corresponding, terminal blind check synchronizing signal, identifies the value of the structural characteristic parameter of synchronizing signal, synchronizing signal Characteristic parameter value corresponding to structure and downlink system bandwidth value meet foregoing mapping relations, and terminal is so as to obtaining down Row system bandwidth information, is described in detail as follows：

Sub- embodiment 1.1：

In book embodiment, the multiple synchronizing signals of frequency domain configuration send resource, utilize the number of synchronizing signal in same symbol Amount, and characteristic parameter of the frequency domain interval as synchronizing signal structure, distinguished based on the difference in this feature parameter values under difference Row system bandwidth.

Here synchronizing signal can be master sync signal, or auxiliary synchronous signals, or primary and secondary synchronization signals joint takes Adjacent-symbol, as shown in figure 3, two kinds of configuration examples of two kinds of synchronizing signal quantity and frequency domain interval are given, wherein configuring one For：Synchronizing signal quantity is 5 in same symbol, and the frequency domain interval between synchronizing signal is f1, and corresponding downlink system band is a width of Bandwidth 1 (bandwidth 1)；Configuring two is：Synchronizing signal quantity is 3 in same symbol, and the frequency domain interval between synchronizing signal is F2, the corresponding a width of Bandwidth 2 of downlink system band.Consider that each synchronizing signal uses identical sequence.Above- mentioned information It is a width of Bandwidth1 of current base station system band well known to base station and terminal, is sent out according to the synchronizing signal structure of configuration one Send synchronizing signal；Terminal is in blind check synchronizing signal, i.e., the synchronous signal sequence known to, in the synchronous letter of time-frequency domain bidimensional search Number, when obtaining relevant peaks in n1 positions, n1 time-frequency domain position is determined, searches further for different frequency domain positions in same symbol Other synchronizing signals, same obtains n2, n3, n4, n5.Then terminal obtains 5 synchronous letters in same symbol being present by blind check Number, the frequency domain interval between synchronizing signal is f1.This with configuration one to corresponding, hence, it can be determined that downlink system band is a width of Bandwidth 1。

It is descending as judging using the two parameters of synchronizing signal quantity in frequency domain interval and same symbol in book embodiment The characteristic parameter of system bandwidth, can also be according to one of parameter as characteristic parameter, but the on condition that difference of this parameter Value and the mapping relations of downlink system bandwidth existence anduniquess.For example, synchronizing signal is with frequency domain distribution quantity N=5 in symbol, it is right Should be in downlink system bandwidth B andwidth=160MHz, synchronizing signal is with frequency domain distribution quantity N=9 in symbol, corresponding to descending System bandwidth Bandwidth=320MHz.Interval is equal between synchronizing signal, and when terminal, to measure the first two synchronizing signal true Behind fixed interval, i.e., next synchronizing signal is found with identical interval, when can not find new synchronizing signal, final determination is same Walk quantity of the signal on frequency domain.

Sub- embodiment 1.2：

Synchronizing signal only configures one piece of resource on frequency domain, and the size of the potential occupied bandwidth of synchronizing signal is distinct, this In synchronizing signal can be master sync signal, or auxiliary synchronous signals, or primary and secondary synchronization signals joint take adjacent-symbol.

Book embodiment is using the size of synchronizing signal occupied bandwidth as characteristic parameter, for terminal indicating downlink system Bandwidth.Similar with sub- embodiment 1.1, system predefines reflecting for different synchronizing signal occupied bandwidth values and downlink system bandwidth value Relation is penetrated, as shown in figure 4, give under two kinds of different system bandwidths, the system bandwidth situation that synchronizing signal takes respectively, Wherein, system bandwidth B1 corresponds to the situation that synchronizing signal is 10MHz, and system bandwidth B2 corresponds among synchronizing signal occupancy 20MHz situation.In book embodiment assume subcarrier spacing be certain (such as 100kHz), then corresponding to 10MHz, 20MHz bandwidth, respectively comprising 100,200 subcarriers, protection band and direct current subcarrier is not considered, can carry sequence respectively The synchronizing signal that length is 100 and 200 is (in systems in practice, because the reserved protection subcarrier in both sides, and intermediate dc carry Ripple, the length of actual synchronization signal sequence can be respectively smaller than 100 and 200).Terminal respectively in a different configuration under synchronizing signal Sequence goes blind check synchronizing signal, when terminal is with the synchronizing sequence corresponding to synchronizing signal 10MHz bandwidth situations and correlation reception sequence Row do correlation, when obtaining correlation peak, judge that synchronizing signal occupied bandwidth is 10MHz, accordingly, the downlink system of current system With a width of B1 (such as 200MHz).

In book embodiment, the parameter characterized by bandwidth shared by synchronizing signal, can also using synchronous signal sequence length as Characteristic parameter.When subcarrier spacing is fixed value, what the bandwidth shared by synchronizing signal can essentially be of equal value is mapped to same The length of signal sequence is walked, still considers above example, it is 100 that 10MHz bandwidth, which corresponds to sequence length, then 20MHz institutes are right The sequence length answered is 200, and now terminal can also be attempted and received respectively with the synchronous signal sequence that length is 100 and 200 The correlation of sequence.

Certainly, subcarrier spacing is there may also be a variety of different options, and now, terminal is needed with each subcarrier spacings Corresponding sequence pair receives data and carries out relevant treatment.

Sub- embodiment 1.3：

Consider that synchronizing signal is divided into major-minor two-stage, i.e. master sync signal PSS, auxiliary synchronous signals SSS, due to high band bandwidth Limitation is no longer as low frequency is so big, and primary and secondary synchronization signals are sent by the form of frequency division multiplexing in same-sign, such as Fig. 5 institutes Show, give two kinds of primary and secondary synchronization signals frequency division multiplexing examples.Considering can be using the frequency domain interval of two-stage synchronizing signal as referring to Show the characteristic parameter of downlink system bandwidth, wherein, when PSS and SSS is at intervals of f1 (such as 10MHz), corresponding downlink system bandwidth For B1 (such as 300MHz)；When PSS and SSS is at intervals of f2 (such as 20MHz), the corresponding a width of B2 of downlink system band (such as 500MHz).

In book embodiment, a width of B1 of downlink system band, base station configures the transmission for carrying out primary and secondary synchronization signals according to left figure, Frequency domain interval is f1.Terminal distinguishes blind check PSS, SSS and determines respective frequency domain, and judges the frequency domain interval between PSS and SSS, When the frequency domain interval of identification is f1, a width of B1 of downlink system band is obtained.

The describing mode of PSS and SSS frequency domain intervals can be a variety of, such as be arrived in book embodiment with SSS terminating point Interval of the absolute interval of PSS starting point as frequency domain interval or between SSS and PSS frequency domain starting points is (in such as figure Indicated by f4), or parameter characterized by interval (as indicated by f3 in figure) between SSS and PSS frequency domain terminating points.

Sub- embodiment 1.4：

The primary and secondary synchronization signals time-division sends, such as it (can also be non-conterminous two to be sent on two adjacent symbols Symbol), but certain skew (offset) on frequency domain be present, can by configuring different offset values, and from it is different under Row system bandwidth value is bound, so as to by different offset to terminal indicating downlink system bandwidth.

As shown in fig. 6, frequency domain offset values f1, f2 correspond respectively to downlink system bandwidth B 1, B2 between primary and secondary synchronization signals. The mapping relations between two kinds of different downlink system bandwidth and offset are merely just provided, system needs predefined all optional Mapping relations between downlink system bandwidth and the major-minor synchronous frequency offseting value on distinct symbols.Base station side is according to downlink system Synchronizing signal structure corresponding to the configuration of bandwidth value, for example, current downlink system bandwidth is B1=1GHz, accordingly, frequency domain is inclined Shifting value f1=20MHz (or represented with resource block RB numbers, such as 20 RB；Or represented with sub-carrier number, such as 200 sons Carrier wave).End side blind check PSS, using PSS optional sequence, PSS is detected in time-frequency domain bidimensional, determines PSS frequency domain； The then blind check SSS on ensuing symbol, using SSS optional sequence, SSS is detected, determines SSS frequency domain, so as to It is 20MHz to obtain the frequency offset between PSS and SSS.Terminal obtains downlink system bandwidth according to the predefined mapping relations of system For B1=1GHz.

Primary and secondary synchronization signals are sent in distinct symbols, and frequency offset is not limited to the form described in Fig. 6, all by similar The mode of frequency offset is all applicable, as shown in fig. 7, give another frequency shift (FS) form, major-minor synchronization with Part RB among system bandwidth, but the sequence length of primary and secondary synchronization signals is different, can now produce primary and secondary synchronization signals starting Frequency point, or the frequency shift (FS) f, different f that terminate between Frequency point correspond to different downlink system bandwidth Bs.

Sub- embodiment 1.5：

Similar to sub- embodiment 1.4, in book embodiment, synchronizing signal at the same level repeats to send on multiple symbols, As shown in figure 8, by taking PSS as an example, PSS repeats to send on continuous two symbols, but frequency domain has certain offset f1, The offset corresponds to downlink system bandwidth B.Detection frequency offseting value f1 process is similar with sub- embodiment 1.4, is Due to repeating to send identical PSS sequences here, therefore, frequency domain model is determined when completing the previous interior PSS blind checks of symbol (such as symbol 1) After enclosing, for the PSS in the latter symbol (such as symbol 2), UE only needs its frequency domain position of blind check, but by previous symbol PSS Detection, PSS signal sequences have been now known, therefore, can examine PSS in latter symbol with the sequence of determination, it is determined that Its frequency domain, and f1 is calculated, so that it is determined that downlink system bandwidth.

Another situation, because the PSS sent in two symbols is identical, it is latter symbol (symbol that terminal may be examined first 2) PSS on, but terminal can not distinguish current inspection to being symbol 1 or symbol 2, therefore, during now terminal not can determine that Heart frequency, terminal will on symbol below continue blind check PSS, until examine again below on symbol N PSS (with symbol 1 PSS positions are identical), system can pre-define the centre that the higher PSS of acquisition frequency is located at system bandwidth, therefore, terminal root Center frequency point is determined according to the rear PSS examined, and calculates frequency offset f1, mapping obtains downlink system bandwidth.

Sub- embodiment 1.6：

Indicate different downlink system bandwidth using the difference of synchronous signal sequence in itself, under this mode, Ke Yitong Level synchronization signal sequence is crossed to indicate, for example, by taking PSS as an example, PSS sequences there are N bars, and downlink system bandwidth value there are M kinds, by N Bar sequence is divided into M groups, every group contain N/M bars (such as N=60, M=10, every group contains 6 sequences, when N/M is not integer, Every group of sequence bar number can also be different), each sequence pair in every group answers identical downlink system bandwidth value, sequence of packets and sequence Arrange and predefined with the mapping relations of downlink system bandwidth by system, terminal goes blind check synchronizing signal with all 60 sequences, finally Show that synchronizing signal uses sequence, downlink system bandwidth is determined according to the mapping relations of the sequence and downlink system bandwidth.

Master sync signal, and auxiliary synchronous letter can also be sent come joint instructions, i.e. base station by two-stage synchronous signal sequence Number, mapping relations be present with downlink system bandwidth in both various combinations.Using the configuration of LTE primary and secondary synchronization signals sequence as showing Example：PSS includes 3 sequences, and SSS includes 168 sequences, and downlink system bandwidth value has 9 kinds, and downlink system bandwidth can also divide For three groups, every group further includes 3 kinds of values, according to PSS sequences (as use length for 62 Zadoff-Chu sequence) no Together, determine that downlink system bandwidth is grouped, then by SSS used by sequence (such as two length are 31 short code sequence frequency-domain-interleaving As a SSS signal sequence) come determine downlink system bandwidth be in this group three kinds of downlink system bandwidth which, such as following table It is shown：

Table 1

Sub- embodiment 1.7：

Consider that synchronizing signal is divided into major-minor two-stage, i.e. master sync signal PSS, auxiliary synchronous signals SSS, PSS and the SSS time-division answers With as shown in figure 9, giving two kinds of primary and secondary synchronization signals time division multiplexing examples.Consideration can be with the time domain of two-stage synchronizing signal The characteristic parameter as indicating downlink system bandwidth is spaced, wherein, it is corresponding when PSS and SSS is at intervals of t1 (such as 1 symbol) The a width of B1 of downlink system band (such as 300MHz)；When PSS and SSS is at intervals of t2 (such as 2 symbols), corresponding downlink system band is a width of B2 (such as 500MHz).

In book embodiment, a width of B1 of downlink system band, base station configures the transmission for carrying out primary and secondary synchronization signals according to left figure, T1 is divided into during frequency domain.Terminal distinguishes blind check PSS, SSS and determines respective time domain scale, and judges the time domain interval between PSS and SSS, When the time domain interval of identification is t1, a width of B1 of downlink system band is obtained.

The describing mode of PSS and SSS time domain intervals can be a variety of, such as be arrived in book embodiment with PSS terminating point Interval of the absolute interval of SSS starting point as time domain interval or between SSS and PSS time domain starting points is (in such as figure Indicated by t3), or parameter characterized by interval (as indicated by t4 in figure) between SSS and PSS time domain terminating points.

In addition, in a manner of using synchronizing signal time domain interval as synchronizing signal structural characteristic parameter, it is not limited to major-minor same Time domain interval or synchronizing signal at the same level (time domain interval between such as adjacent PSS, or, the time domain between adjacent S SS between step Interval) time domain interval as characteristic parameter, indicating downlink system bandwidth.

Sub- embodiment 1.8：

Give each synchronizing signal structure-related characteristic parameter independent indicating downlink system band in sub- embodiment 1.1-1.7 Wide method, can also multiple synchronizing signal characteristic parameters be combined joint instructions, for example, with synchronous signal sequence length A certain specific value corresponds to one group of downlink system bandwidth value (i.e. downlink system bandwidth aggregation), and further utilizes distinct symbols Frequency shift (FS) instruction current downlink system bandwidth between interior synchronizing signal is this group of downlink system bandwidth (downlink system bandwidth Set) which of specific value, so as to realize joint instructions of multiple synchronizing signal characteristic parameters to downlink system bandwidth.

Similar therewith, one or more in following synchronizing signal characteristic parameter are combined, and may serve to indicate Downlink system bandwidth value：Synchronous signal sequence length, synchronizing signal frequency domain width, the frequency of adjacent sync signal in same symbol Domain interval, the quantity of synchronizing signal in same symbol, the frequency shift (FS) in distinct symbols between synchronizing signal are synchronous in distinct symbols Frequency domain width differential between signal, primary and secondary synchronization signals frequency shift (FS), primary and secondary synchronization signals frequency domain width differential, major-minor synchronous letter Number sequence length difference, major-minor synchronous frequency domain interval.

Embodiment 2

The present embodiment includes sub- embodiment 2.1-2.3, only corresponding to the different sending methods only by Physical Broadcast Channel The mode of vertical indicating downlink system bandwidth：

In this manner, system predefines the mapping relations of Physical Broadcast Channel sending method and downlink system bandwidth, The mapping relations are known to base station side and end side, and base station determines that Physical Broadcast Channel is sent according to current downlink system bandwidth Mode, corresponding, terminal blind check Physical Broadcast Channel, identify Physical Broadcast Channel sending method, different modes and descending system Regiment commander's width is applied to foregoing mapping relations, and terminal is described in detail as follows so as to obtain downlink system bandwidth information：

Sub- embodiment 2.1：

A part using downlink system bandwidth index as system message, i.e., in system broadcast message explicitly to terminal Indicating downlink system bandwidth information.For example, in new RAT systems, the value of downlink system bandwidth includes 10 kinds, is respectively： 100、160、320、480、500、640、800、1000、1500、2000MHz.Need in system broadcast message using 4bits come table Show this 10 kinds of values, as shown in table 2：

Table 2

Mapping relations shown in upper table are known to terminal and base station, and terminal searches for synchronizing signal in time-frequency bidimensional first, complete Into in the down-going synchronous process of base station, according to synchronizing signal and the resource impact relation of Physical Broadcast Channel (thing in such as existing LTE Reason broadcast channel and synchronizing signal all take the RB of centre 6 of system bandwidth, taken in time domain synchronizing signal followed by 4 Individual symbol), Physical Broadcast Channel is found, and know that current downlink system bandwidth index is from the system broadcast message solved 0100, terminal is it can be seen from the mapping relations that downlink system bandwidth is indexed between downlink system bandwidth, current downlink system bandwidth For 500MHz.

Sub- embodiment 2.2：

Represented using different verification sequences (such as CRC (Cyclic Redundancy Check) sequence) Different downlink system bandwidth values, for example, system broadcast message data information field takes 24bit, splice in the sequence 16bit CRC check sequence, different verification sequences can serve to indicate that different downlink system bandwidth values.Such as the institute of table 3 Show.

Table 3

Downlink system bandwidth indexes	Downlink system bandwidth (MHz)
		CRC₁	100
CRC₂	160
		CRC₃	320
CRC₄	480
		CRC₅	500
CRC₆	640
		CRC₇	800
CRC₈	1000
		CRC₉	1500
CRC₁₀	2000
		CRC₁₁-CRC_xx	Reserved

Terminal and above-mentioned corresponding relation known in base station, when terminal receives system broadcast message, with different CRC checks Sequence goes to attempt decoding system broadcast information, and the CRC check sequence being successfully decoded is for base station in transmitting terminal to system broadcast message Additional CRC check sequence, therefore, terminal can obtain simultaneously on the basis of original information verifying function is realized using CRC The instruction of downlink system bandwidth, for example, when end side attempts to use verification sequence CRC₅Go successfully to solve when decoding system broadcast message Go out, then a width of CRC of downlink system band₅Corresponding 500MHz.

Sub- embodiment 2.3：

Sub- embodiment 2.1,2.2 respectively describes, under two kinds of Physical Broadcast Channel sending methods, respective independent indicating downlink The method of system bandwidth：I.e. 1, the part using downlink system bandwidth index as system message, it is explicit under terminal instruction Row system bandwidth information.2nd, different verification sequence (such as CRC (Cyclic Redundancy Check) is utilized Sequence) different downlink system bandwidth values is represented, to terminal indicating downlink system bandwidth.

Can also be using both combinations come joint instructions downlink system bandwidth, the bearing downlink system in system broadcast message Wide indication bit is commanded, each information bit value corresponds to one group of downlink system bandwidth value (i.e. downlink system bandwidth aggregation), And which in this downlink system bandwidth aggregation further represents current downlink system bandwidth using different CRC check sequences is One element, the final specific value for determining downlink system bandwidth.As shown in table 4：When the value of descending system bandwidth belongs to During Group (group) A, simply bit is 0 accordingly in system broadcast message；When the value of descending system bandwidth belongs to Group During B, simply bit is 1 accordingly in system broadcast message.Optionally, by CRC check sequence difference come indicating downlink system Regiment commander's width be where group which element, CRC1 is corresponding to first element being each grouped, i.e. Group A 100MHz, With Group B 640MHz.By that analogy.

Table 4

In contrast, can also be using the CRC check sequence of system broadcast message come belonging to indicating downlink system bandwidth Packet, and indicate it is which specific element by indicating information bit in system broadcast message.

Embodiment 3

The present embodiment includes sub- embodiment 3.1-3.4, corresponds to the pass synchronizing signal structure and is sent with Physical Broadcast Channel Mode mixes the mode of indicating downlink system bandwidth：

In this manner, system predefines synchronizing signal structure Physical Broadcast Channel sending method and downlink system bandwidth Mapping relations, the mapping relations be base station side with end side known to, base station determines synchronous according to current downlink system bandwidth Signal structure and Physical Broadcast Channel sending method, corresponding, terminal blind check synchronizing signal, and Physical Broadcast Channel, identification Go out synchronizing signal structural characteristic parameter, and Physical Broadcast Channel sending method, so as to obtain downlink system bandwidth information.Due to It is divided to two level mixing indicating downlink system bandwidths, downlink system bandwidth value can be divided into one or more group Group (such as N Group), each group is interior to contain one or more downlink system bandwidth elements (such as M).So, the feature of synchronizing signal can be used to join Several values indicates the group (referred to herein as " group index " or " group identify ") where current downlink system bandwidth, wide with physics Broadcast the specific value that channel carrys out indicating downlink system bandwidth (referred to herein as " being indexed in group " or " being identified in group ")；It can also use The value of the characteristic parameter of synchronizing signal indicates " group in index ", with Physical Broadcast Channel sending method indicates " group rope Draw ".

Molecule embodiment is described in detail below：

Sub- embodiment 3.1：

The group where current downlink system bandwidth is indicated with the value of the characteristic parameter of synchronizing signal structure, i.e. " group rope Draw ", with Physical Broadcast Channel come the specific value of indicating downlink system bandwidth, i.e. " index in group ".Wherein, downlink system bandwidth Value have 8 kinds, be classified as two groups, Group A={ 100,160,320,480MHz }, Group B=640,800, 1000,2000MHz }；The characteristic parameter of synchronizing signal is synchronous signal sequence length, has two kinds of different values, is respectively used to Indicate which Group is current downlink system bandwidth belong to, synchronous signal sequence length is respectively 62 (instruction Bandwidth ∈ Group A), 126 (Bandwidth ∈ Group B).The sending method of Physical Broadcast Channel is to be included in system broadcast message Indexed in downlink system sets of bandwidths, the possibility value containing 4 kinds of downlink system bandwidth in every group, therefore, in system broadcast message In have 2bit be used for indicate, the specific value of downlink system bandwidth.As shown in table 5.

Table 5

Terminal blind check synchronizing signal first, makes of all synchronizing sequences of length 62 and 126 with the data received respectively Related operation, the length of synchronizing signal is successfully detected, obtain downlink system bandwidth group index, as detection obtains synchronous signal sequence Length is 62, then downlink system bandwidth belongs to Group A, i.e., downlink system bandwidth value is in 100,160,320,500MHz One.

Optionally, terminal receives Physical Broadcast Channel in corresponding position, reads system broadcast message, therefrom obtains descending Indexed in the group of system bandwidth, such as 10, then the downlink system bandwidth value of current system is 320MHz.Complete to downlink system band Wide acquisition process.

Book embodiment is indicated that by the characteristic parameter value in synchronizing signal structure come indicating downlink system bandwidth Group index, and the method indexed in the group by the information indicating downlink system bandwidth carried in Physical Broadcast Channel.It is and unlimited In the characteristic parameter of synchronizing signal be synchronous signal sequence length, when characteristic parameter be embodiment 1 shown in each feature ginseng Number (synchronous signal sequence length, synchronizing signal frequency domain width, the frequency domain interval of adjacent sync signal, same symbol in same symbol The quantity of synchronizing signal in number, the frequency shift (FS) in distinct symbols between synchronizing signal, the frequency domain in distinct symbols between synchronizing signal Width differential, primary and secondary synchronization signals frequency shift (FS), primary and secondary synchronization signals frequency domain width differential, primary and secondary synchronization signals sequence length are poor Value, major-minor synchronous frequency domain interval, the time domain interval of adjacent sync signal, major-minor synchronous time domain interval) any one when, Method is applicable.

Sub- embodiment 3.2：

Book embodiment is described as follows situation：The group where current downlink system bandwidth is indicated with Physical Broadcast Channel, That is " group index ", with the value of the characteristic parameter of synchronizing signal structure come the related value of indicating downlink system bandwidth, i.e., " in group Index ".

Wherein, the value of downlink system bandwidth has 8 kinds, is classified as two groups, Group A=100,160,320, 480MHz }, Group B={ 640,800,1000,2000MHz }；The sending method of Physical Broadcast Channel is to disappear in system broadcasts Downlink system bandwidth group index is included in breath, is used to indicate which Group is current downlink system bandwidths belong to 1bit, that is, organizes rope Draw, 0 represents Group A, and 1 represents Group B.

The characteristic parameter of synchronizing signal is with the frequency domain interval between primary and secondary synchronization signals in symbol, there is 4 kinds of different values, It is respectively used to indicate the specific value of current downlink system bandwidth.As shown in table 6.

Table 6

Terminal blind check primary and secondary synchronization signals first, determine the frequency domain interval between primary and secondary synchronization signals, method and embodiment 1 Sub- embodiment 1.3 is identical, repeats no more here.Determine PSS, frequency domain interval is 10MHz between SSS, then can determine that downlink system band A width of 100MHz or 640MHz.

Optionally, terminal receives Physical Broadcast Channel in corresponding position, reads system broadcast message, therefrom obtains descending The group index of system bandwidth, such as 0, it is determined that the downlink system bandwidth value of current system is 100MHz.Complete to downlink system The acquisition process of bandwidth.

Book embodiment is indicated that by the characteristic parameter value in synchronizing signal structure come indicating downlink system bandwidth Indexed in group, and the method for the group index of the information indicating downlink system bandwidth by being carried in Physical Broadcast Channel.It is and unlimited In frequency domain interval of the characteristic parameter between primary and secondary synchronization signals of synchronizing signal, when characteristic parameter is each shown in embodiment 1 Individual characteristic parameter (synchronous signal sequence length, synchronizing signal frequency domain width, in same symbol between the frequency domain of adjacent sync signal Frequency shift (FS) between synchronizing signal in, the quantity of synchronizing signal in same symbol, distinct symbols, synchronizing signal in distinct symbols Between frequency domain width differential, primary and secondary synchronization signals frequency shift (FS), primary and secondary synchronization signals frequency domain width differential, primary and secondary synchronization signals sequence Row length difference, major-minor synchronous frequency domain interval, the time domain interval of adjacent sync signal, major-minor synchronous time domain interval) appoint At what one, method is applicable.

Sub- embodiment 3.3：

It is similar with sub- embodiment 3.2, following situation described herein：Current downlink system is indicated with Physical Broadcast Channel Group where bandwidth, i.e. " group index "；With the value of the characteristic parameter of synchronizing signal structure come the tool of indicating downlink system bandwidth Body value, i.e., " indexed in group ", still indicate to index in group using frequency domain interval between PSS and SSS.Difference is, uses physics Broadcast channel indicates that the mode of group index is：The group of the different CRC check sequence indicating downlink system bandwidths of system broadcast message Index.

Wherein, the value of downlink system bandwidth has 8 kinds, is classified as 4 groups, Group A={ 100,160MHz }, Group B={ 320,480MHz }, Group C={ 640,800MHz }, Group D={ 1000,2000MHz }；Accordingly, it is necessary to 4 Packet belonging to different CRC check sequence indicating downlink system bandwidths, i.e. group index.

The characteristic parameter of synchronizing signal is with the frequency domain interval between primary and secondary synchronization signals in symbol, has two kinds different to take Value, it is respectively used to indicate the specific value of current downlink system bandwidth.As shown in table 7.

Table 7

Terminal blind check primary and secondary synchronization signals first, determine the frequency domain interval between primary and secondary synchronization signals, method and embodiment 1 Sub- embodiment 1.3 is identical, repeats no more here.Determine PSS, frequency domain interval is 10MHz between SSS, then can determine that downlink system band One of a width of 100MHz, 320MHz, 640MHz, 1000MHz.

Optionally, terminal receives Physical Broadcast Channel in corresponding position, is attempted to solve code system respectively with 4 CRC sequences Broadcast message, the sequence being successfully decoded is CRC3, and the mapping relations shown in table 7 can find the group rope of downlink system bandwidth Draw, the downlink system bandwidth value for determining current system is 640MHz.Complete the acquisition process to downlink system bandwidth.

Book embodiment is indicated that by the characteristic parameter value in synchronizing signal structure come indicating downlink system bandwidth Indexed in group, and pass through the group rope of the CRC check sequence indicating downlink system bandwidth of system broadcast message in Physical Broadcast Channel The method drawn.Frequency domain interval of the characteristic parameter of synchronizing signal between primary and secondary synchronization signals is not limited to, when characteristic parameter is real (synchronous signal sequence length, synchronizing signal frequency domain width are adjacent same in same symbol for each characteristic parameter for applying shown in example 1 The frequency domain interval of signal is walked, the quantity of synchronizing signal in same symbol, the frequency shift (FS) in distinct symbols between synchronizing signal is different Frequency domain width differential in symbol between synchronizing signal, primary and secondary synchronization signals frequency shift (FS), primary and secondary synchronization signals frequency domain width differential, Primary and secondary synchronization signals sequence length difference, major-minor synchronous frequency domain interval, the time domain interval of adjacent sync signal are major-minor synchronous Time domain interval) any one when, method be applicable.

Sub- embodiment 3.4：

It is similar with sub- embodiment 3.1, following situation described herein：With the value of the characteristic parameter of synchronizing signal structure come Group where indicating downlink system bandwidth, i.e. " group index ", indicate current downlink system bandwidth in group with Physical Broadcast Channel Interior mark, i.e., " indexed in group ", so that it is determined that the specific value of downlink system bandwidth；Using frequency domain interval between PSS and SSS come Indicate group index.Use the mode that is indexed in Physical Broadcast Channel instruction group for：The different CRC check sequences of system broadcast message Indexed in the group of indicating downlink system bandwidth.

Wherein, the value of downlink system bandwidth has 8 kinds, is classified as 4 groups, Group A={ 100,160MHz }, Group B={ 320,480MHz }, Group C={ 640,800MHz }, Group D={ 1000,2000MHz }；The feature of synchronizing signal Parameter be with the frequency domain interval between primary and secondary synchronization signals in symbol, it is corresponding, it is necessary to frequency domain interval between 4 kinds of different PSS and SSS Packet belonging to indicating downlink system bandwidth, i.e. group index.

The CRC check sequence of system broadcast message has two kinds of { CRC on Physical Broadcast Channel₁, CRC₂, it is respectively used to indicate The value of current downlink system bandwidth, as shown in table 8.

Table 8

Terminal blind check primary and secondary synchronization signals first, determine the frequency domain interval between primary and secondary synchronization signals, method and embodiment 1 Sub- embodiment 1.3 is identical, repeats no more here.Determine PSS, frequency domain interval is 10MHz between SSS, then can determine that downlink system band Width belongs to Group A, as 100MHz or 160MHz.

Optionally, terminal receives Physical Broadcast Channel in corresponding position, is attempted to solve code system respectively with two CRC sequences Broadcast message, the sequence being successfully decoded is CRC₂, the mapping relations shown in table 8 can be found in the group of downlink system bandwidth Index, the downlink system bandwidth value for determining current system is 160MHz.Complete the acquisition process to downlink system bandwidth.

Book embodiment is indicated that by the characteristic parameter value in synchronizing signal structure come indicating downlink system bandwidth Group index, and pass through rope in the group of the CRC check sequence indicating downlink system bandwidth of system broadcast message in Physical Broadcast Channel The method drawn.Frequency domain interval of the characteristic parameter of synchronizing signal between primary and secondary synchronization signals is not limited to, when characteristic parameter is real (synchronous signal sequence length, synchronizing signal frequency domain width are adjacent same in same symbol for each characteristic parameter for applying shown in example 1 The frequency domain interval of signal is walked, the quantity of synchronizing signal in same symbol, the frequency shift (FS) in distinct symbols between synchronizing signal is different Frequency domain width differential in symbol between synchronizing signal, primary and secondary synchronization signals frequency shift (FS), primary and secondary synchronization signals frequency domain width differential, Primary and secondary synchronization signals sequence length difference, major-minor synchronous frequency domain interval, the time domain interval of adjacent sync signal are major-minor synchronous Time domain interval) any one when, method be applicable.

The schematic diagram of the base station of Figure 10 embodiment of the present invention, as shown in Figure 10, the base station of the present embodiment include：

Alternatively, the base station of the present embodiment can also include：

Definition module, for predefining the configuration.

Wherein, predefined configuration includes：When with synchronizing signal structure indicating downlink system bandwidth information, predefine same Walk the mapping relations of signal characteristic parameter and downlink system bandwidth；Or when with Physical Broadcast Channel sending method indicating downlink During system bandwidth information, downlink system bandwidth index and the mapping relations of downlink system bandwidth are predefined, or, predefine verification The mapping relations of sequence and downlink system bandwidth；Or combine when with synchronizing signal structure with Physical Broadcast Channel sending method During indicating downlink system bandwidth information, predefined synchronizing signal characteristic parameter value is with the combination that downlink system bandwidth indexes with The mapping relations of row system bandwidth, or, predefine the combination of synchronizing signal characteristic parameter value and verification sequence and descending system Command wide mapping relations.

Alternatively, the definition module, defining the Physical Broadcast Channel sending method includes：In system message sequence Indexed comprising downlink system bandwidth, or the verification sequence related to downlink system bandwidth is added in system message sequence.

Wherein, predefined synchronizing signal structure includes any one or more in following characteristics parameter：Synchronizing signal Sequence length, synchronizing signal frequency domain width, the frequency domain interval of adjacent sync signal in same symbol, synchronizing signal in same symbol Quantity, the frequency shift (FS) in distinct symbols between synchronizing signal, the frequency domain width differential in distinct symbols between synchronizing signal is main same Walk the frequency shift (FS) between signal and auxiliary synchronous signals, the difference of master sync signal and auxiliary synchronous signals frequency domain width, main synchronous letter Difference number with auxiliary synchronous signals sequence length, the frequency domain interval in same symbol between master sync signal and auxiliary synchronous signals, phase The time domain interval of adjacent synchronizing signal, the time domain interval between master sync signal and auxiliary synchronous signals.

Figure 11 is the schematic diagram of the terminal of the embodiment of the present invention, and as shown in Figure 10, the terminal of the present embodiment includes：

Alternatively, the terminal of the present embodiment can also include：

The embodiment of the present invention additionally provides a kind of computer-readable recording medium, and it is stored with computer executable instructions, The computer executable instructions realize the page processing method when being performed.

One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly Ground, each module/unit in above-described embodiment can be realized in the form of hardware, can also use the shape of software function module Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.

Although the embodiment disclosed by the embodiment of the present invention is as above, described content is only to readily appreciate that the present invention is real The embodiment applied example and used, it is not limited to the application.Technical staff in any the application art, do not taking off From disclosed herein spirit and scope on the premise of, any modification and change can be carried out in the form and details of implementation Change, but the scope of patent protection of the application, still it should be subject to the scope of the claims as defined in the appended claims.

Claims

1. a kind of downlink system bandwidth indicating means, including：

Base station sends synchronizing signal and/or Physical Broadcast Channel according to predefined configuration, wherein

The synchronizing signal and/or Physical Broadcast Channel indicating downlink system bandwidth information, the predefined configuration include：In advance The synchronizing signal structure of definition and/or predefined Physical Broadcast Channel sending method.

2. according to the method for claim 1, it is characterised in that the predefined configuration, including：

When with synchronizing signal structure indicating downlink system bandwidth information, synchronizing signal characteristic parameter value and descending system are predefined Command wide mapping relations；

Or when with Physical Broadcast Channel sending method indicating downlink system bandwidth information, predefine downlink system bandwidth rope Draw the mapping relations with downlink system bandwidth, or, the mapping relations of predefined verification sequence and downlink system bandwidth；

Or when with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions downlink system bandwidth information, in advance Combination and the mapping relations of downlink system bandwidth of synchronizing signal characteristic parameter value and downlink system bandwidth index are defined, or Person, predefine combination and the mapping relations of downlink system bandwidth of synchronizing signal characteristic parameter value and verification sequence.

3. according to the method for claim 2, it is characterised in that when with synchronizing signal structure and Physical Broadcast Channel sender During formula joint instructions downlink system bandwidth information, downlink system bandwidth value is grouped, each specific downlink system bandwidth value by Group index uniquely represents with index in group；Wherein, the group index is the downlink system bandwidth where the downlink system bandwidth The mark of group；The mark of index group inner element where the downlink system bandwidth in described group.

4. according to the method for claim 3, it is characterised in that

The synchronizing signal structure is used to indicate the downlink system bandwidth group index, and the Physical Broadcast Channel sending method is used Indexed in the group for indicating the downlink system bandwidth；

5. according to the method for claim 1, it is characterised in that the Physical Broadcast Channel sending method includes：In system Indexed in message sequence comprising downlink system bandwidth, or the school related to downlink system bandwidth is added in system message sequence Test sequence.

6. according to the method described in claim any one of 1-5, it is characterised in that the synchronizing signal structure includes following characteristics It is any one or more in parameter：

Synchronous signal sequence length, synchronizing signal frequency domain width, the frequency domain interval of adjacent sync signal, same symbol in same symbol The quantity of synchronizing signal in number, the frequency shift (FS) in distinct symbols between synchronizing signal, the frequency domain in distinct symbols between synchronizing signal Width differential, the frequency shift (FS) between master sync signal and auxiliary synchronous signals, master sync signal and auxiliary synchronous signals frequency domain width Difference, the difference of master sync signal and auxiliary synchronous signals sequence length, in same symbol between master sync signal and auxiliary synchronous signals Frequency domain interval, the time domain interval of adjacent sync signal, the time domain interval between master sync signal and auxiliary synchronous signals.

A kind of 7. base station, it is characterised in that including：

Sending module, synchronizing signal and/or Physical Broadcast Channel are sent according to predefined configuration, wherein the synchronizing signal And/or Physical Broadcast Channel indicating downlink system bandwidth information, the predefined configuration include：Predefined synchronizing signal knot Structure and/or predefined Physical Broadcast Channel sending method.

8. base station according to claim 7, it is characterised in that

The configuration includes：When with synchronizing signal structure indicating downlink system bandwidth information, synchronizing signal feature ginseng is predefined The mapping relations of number value and downlink system bandwidth；Or when with Physical Broadcast Channel sending method indicating downlink system bandwidth During information, downlink system bandwidth index and the mapping relations of downlink system bandwidth are predefined, or, verification sequence is predefined with The mapping relations of row system bandwidth；Or when descending with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions During system bandwidth information, combination and the downlink system band of synchronizing signal characteristic parameter value and downlink system bandwidth index are predefined Wide mapping relations, or, the combination of predefined synchronizing signal characteristic parameter value and verification sequence and downlink system bandwidth Mapping relations.

9. base station according to claim 8, it is characterised in that

Predefine when with synchronizing signal structure and Physical Broadcast Channel sending method joint instructions downlink system bandwidth information, will Downlink system bandwidth value is grouped, and each specific downlink system bandwidth value is by the unique expression of index in group index and group；Wherein, institute State the mark of downlink system sets of bandwidths of the group index where the downlink system bandwidth；Index is the descending system in described group The mark of group inner element where regiment commander is wide.

10. base station according to claim 9, it is characterised in that

The predefined synchronizing signal structure is used to indicate the downlink system bandwidth group index, the Physical Broadcast Channel hair Mode is sent to be used to indicate to index in the group of the downlink system bandwidth；Or the synchronizing signal structure be used for indicate it is described under Indexed in the group of row system bandwidth, the Physical Broadcast Channel sending method is used to indicate the downlink system bandwidth group index.

11. base station according to claim 7, it is characterised in that

The predefined Physical Broadcast Channel sending method includes：Downlink system bandwidth rope is included in system message sequence Draw, or the verification sequence related to downlink system bandwidth is added in system message sequence.

12. according to the base station described in claim any one of 7-11, it is characterised in that

Predefined synchronizing signal structure includes any one or more in following characteristics parameter：Synchronous signal sequence length, together Signal frequency domain width is walked, the frequency domain interval of adjacent sync signal in same symbol, the quantity of synchronizing signal, different in same symbol Frequency shift (FS) in symbol between synchronizing signal, the frequency domain width differential in distinct symbols between synchronizing signal, master sync signal with it is auxiliary Frequency shift (FS) between synchronizing signal, the difference of master sync signal and auxiliary synchronous signals frequency domain width, master sync signal with it is auxiliary synchronous The difference of signal sequence length, the frequency domain interval in same symbol between master sync signal and auxiliary synchronous signals, adjacent sync signal Time domain interval, the time domain interval between master sync signal and auxiliary synchronous signals.

13. a kind of downlink system bandwidth indicating means, including：

Terminal receives synchronizing signal and/or Physical Broadcast Channel；

The terminal is by identifying that synchronizing signal structure and/or Physical Broadcast Channel sending method obtain downlink system bandwidth and believed Breath.

14. according to the method for claim 13, it is characterised in that

When terminal is by identifying that Physical Broadcast Channel sending method obtains downlink system bandwidth information, physical broadcast letter is received Road, obtains the downlink system bandwidth index of the Physical Broadcast Channel instruction, and the different downlink system bandwidth index is corresponding In different downlink system bandwidth；Or the terminal recognition goes out the verification sequence of system message sequence, the different systems disappears The verification sequence of breath sequence corresponds to different downlink system bandwidth.

15. according to the method for claim 13, it is characterised in that also include：

The terminal pre-saves any one or more in following predefined mapping relations：Synchronizing signal characteristic parameter takes The mapping relations of value and downlink system bandwidth；Or downlink system bandwidth index and the mapping relations of downlink system bandwidth；Or Person, the verification sequence of system message sequence and the mapping relations of downlink system bandwidth；Or synchronizing signal characteristic parameter value with The combination of downlink system bandwidth index and the mapping relations of downlink system bandwidth；Or synchronizing signal characteristic parameter value is with being The combination for message sequence verification sequence of uniting and the mapping relations of downlink system bandwidth.

16. according to the method for claim 13, it is characterised in that

When the terminal is by identifying that synchronizing signal structure and Physical Broadcast Channel sending method obtain downlink system bandwidth information When, obtain and indexed in group index and group, and then the downlink system bandwidth information is obtained, the downlink system bandwidth value is advance Packet, each downlink system bandwidth value index unique expression by group index and group are interior, wherein, the group index is the descending system The mark of downlink system sets of bandwidths where regiment commander is wide；Index group inner element where the downlink system bandwidth in described group Mark.

17. according to the method for claim 16, it is characterised in that

18. according to the method described in claim any one of 13-17, it is characterised in that the synchronizing signal structure includes following It is any one or more in characteristic parameter：

A kind of 19. terminal, it is characterised in that including：

Acquisition module, by identifying that synchronizing signal structure and/or Physical Broadcast Channel sending method obtain downlink system bandwidth and believed Breath.

20. terminal according to claim 19, it is characterised in that

The acquisition module, when by identifying that Physical Broadcast Channel sending method obtains downlink system bandwidth information, for connecing Physical Broadcast Channel is received, obtains the downlink system bandwidth index of the Physical Broadcast Channel instruction, the different downlink system Bandwidth index corresponds to different downlink system bandwidth；Or for identifying the verification sequence of system message sequence, different institutes The verification sequence for stating system message sequence corresponds to different downlink system bandwidth.

21. terminal according to claim 19, it is characterised in that also include：

Memory module, it is any one or more in following predefined mapping relations for pre-saving：Synchronizing signal feature Parameter value and the mapping relations of downlink system bandwidth；Or downlink system bandwidth index and the mapping of downlink system bandwidth are closed System；Or the mapping relations of the verification sequence of system message sequence and downlink system bandwidth；Or synchronizing signal characteristic parameter Combination and the mapping relations of downlink system bandwidth of the value with downlink system bandwidth index；Or synchronizing signal characteristic parameter takes Value and the combination of system message sequence check sequence and the mapping relations of downlink system bandwidth.

22. terminal according to claim 19, it is characterised in that

The acquisition module, by identifying that synchronizing signal structure and Physical Broadcast Channel sending method obtain downlink system bandwidth and believed During breath, indexed for obtaining in group index and group, and then obtain the downlink system bandwidth information, the downlink system bandwidth value It is grouped in advance, each downlink system bandwidth value is uniquely represented by group index and index in group, wherein, the group index is described The mark of downlink system sets of bandwidths where downlink system bandwidth；Index is in the group of downlink system bandwidth place in described group The mark of portion's element.

23. terminal according to claim 22, it is characterised in that