CN101577858B - Method and device for indicating attribute of wireless subframe in multicast/broadcast MBSFN frame - Google Patents
Method and device for indicating attribute of wireless subframe in multicast/broadcast MBSFN frame Download PDFInfo
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Abstract
The invention provides a method and a device for indicating the attribute of a wireless subframe in a multicast/broadcast MBSFN frame, which is used for indicating the attribute of a subframe contained in a wireless frame in a long-term evolution time division duplex system. The method comprises the following steps: for different network configuration modes of the system, respectively configuring one or more subframes of which the attribute is a single-frequency online multicast/broadcast subframe, namely the MBSFN subframe, in the wireless frame in each network configuration mode; in a message block of a system broadcast message, setting an indicating field for representing the attribute of a subframe; and indicating the subframe of which the attribute is the MBSFN subframe by using the value of the indicating field. By the invention, the attribute of the subframe of the MBSFN frame can be indicated according to the different network configuration modes in an LTE TDD system.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of indicating means and device that is used for attribute of wireless subframe in the multicast/broadcast MBSFN frame of long term evolution TDD system.
Background technology
Third generation partner program (3rd Generation Partnership Project; Abbreviate 3GPP as) long evolving system (Long Tern Evolution; Abbreviate LTE as) in; Frequency division multiplexing (Frequency Division Duplex; Abbreviate FDD as) and two kinds of physical layer frame structures of time division multiplexing (Time Division Duplex abbreviates TDD as) be respectively frame structure Class1 (frame structure type 1) and frame structure type 2 (frame structuretype 2), wherein; Fig. 1 is the frame structure sketch map that is applied to the frame structure type 1 of LTE FDD, and Fig. 2 is the frame structure sketch map that is applied to the frame structure type 2 of LTE TDD.
In Fig. 1, each radio frames of FDD (radio frame abbreviates RF as) is 10ms, wherein, comprises 10 sub-frame (subframe) in each radio frames; Each subframe lengths is 1ms, and numbering is respectively #0, #1 ..., #9; Each subframe comprises 2 time slots (slot), and like this, each radio frames comprises 20 time slots altogether, each time slot 0.5ms; Numbering is respectively #0, #1 ..., #19.
In Fig. 2, each radio frames length of TDD is 10ms, wherein; Comprise 10 sub-frame in each radio frames, each subframe lengths is 1ms, and numbering is respectively #0; #1 ..., #9; Different with the FDD subframe is that the subframe of TDD is numbered the wireless sub-frame of #1 (Subframe#1) and always comprises descending pilot frequency time slot (Downlink Pilot Time Slot abbreviates DwPTS as), protection (Guard period at interval; Abbreviate GP as) and uplink pilot time slot (Uplink Pilot Time Slot abbreviates UpPTS as).Like this, for be applicable to LTE TDD different application scenes (cover like big sub-district, different on/downlink business demand etc.); The radio frames of LTE TDD can be configured to the various network configuration mode, that is: different on/descending sub frame and different GP length, have 7 kinds of different up-descending sub frames to distribute (Uplink-downlink allocations) configuration modes under the different application scenes; Be specially configuration # 0; #1, #2 ... #6; Table 1 shows under 7 kinds of various network configuration modes the up-downstream arrangements resource of ten wireless sub-frames in each radio frames; Wherein, D (Downlink) representes that this subframe is used for downlink; U (Uplink) representes that this subframe is used for up emission, and S-representes that this subframe is the special subframe that comprises DwPTS, GP and UpPTS.For example, be 0,1,2,6 o'clock in the network configuration pattern, Subframe#6 comprises DwPTS, GP and UpPTS, is 3,4,5 o'clock in the network configuration pattern, Subframe#6 only comprises DwPTS.Except Subframe# 1 and Subframe#6, other subframe all comprises 2 time slots, and each time slot is 0.5ms.Subframe# 0 and #5, DwPTS are used for downlink, and under any configuration mode, Subframe# 2 is configured to up emission.
Table 1:Uplink-downlink allocations. (up-descending distribution)
In order to effectively utilize mobile network resource, 3GPP has proposed multimedia broadcasting and multicast service (Multimedia Broadcast Multicast Service abbreviates MBMS as).The MBMS business is a kind ofly in the mobile network, to provide a data source to send the business of the point of data to multiple spot to a plurality of users, and it can realize that Internet resources share, and improves utilization rate of network resource, especially the utilance of valuable air interface resource.The MBMS of 3GPP definition can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize multicast and broadcasting that high-speed multimedia is professional, and multiple rich video, audio frequency and multimedia service are provided.In the LTE network, the MBMS technology is called as improved multimedia broadcast-multicast service (Evolved MBMS abbreviates E-MBMS as).
In the LTE network; OFDM inserts (Orthogonal Frequency DivisionMultiplex Access; Abbreviate OFDMA as) emission support many cell multicasts/broadcast transmission mode, under this radiation pattern, a plurality of sub-districts are the identical wireless signal of transmission content simultaneously; Portable terminal in these sub-districts (User Equipment; Abbreviate UE as) receive same signal from a plurality of sub-districts as the multipath that receives a signal, this radiation pattern is called the multicast/broadcast mode (Multicast/Broadcast over SingleFrequency Network abbreviates MBSFN as) on the SFN.
Under the MBSFN radiation pattern, the Multicast Channel (Multicast Channel abbreviates MCH as) of identical transformat is adopted in a plurality of sub-districts, and uses identical physical resource to launch identical data.
In LTE FDD and LTE TDD, radio frames is divided into MBSFN frame (MBSFN frame) and non-MBSFN frame (None-MBSFN frame, i.e. unicast frame, Unicast frame).Wherein, Part subframe in the MBSFN frame adopts the MBSFN radiation pattern; Subframe in the MBSFN frame comprises MBSFN subframe (MBSFN subframe) and non-MBSFN subframe (Non-MBSFN subframe; Be unicast subframe), promptly having a sub-frame in the MBSFN frame at least is the MBSFN subframe, is illustrated in figure 3 as the frame structure sketch map of MBSFN; All subframes in the None-MBSFN frame do not adopt the MBSFN radiation pattern, and adopt the Unicast radiation pattern.
In the LTE network, no matter be LTE FDD or LTE is TDD, UE need know that each radio frames is MBSFN frame or Non-MBSFN is frame.And; For MBSFN frame; UE need know further that also which subframe is MBSFN subframe, so that UE adopts MBSFN reference signal or Cell-specificreference signal to carry out channel estimating on each subframe, that is to say that for radio frames be the Non-MBSFN frame; Its whole subframes are not MBSFN subframe, are that which subframe that the MBSFN frame then need indicate this frame is MBSFN subframe for radio frames.In general, network side generally adopts system broadcast message, and the radio frames of each sub-district and the attribute information of wireless sub-frame are sent to each sub-district, and UE obtains the attribute information of each radio frames and wireless sub-frame through the reading system broadcast.
For LTE FDD network, there are 8 sub-frame can be configured to MBSFN subframe ( subframe# 1,2,3,4,6,7,8,9) among the MBSFN frame.At present, there is dual mode to indicate the sub-frame property of each MBSFN frame.A kind of is the mode that adopts bit (bit) mapping (bitmap), needs 8 bits, and each bit is set to 0 or 1 and indicates this subframe yes or no MBSFN subframe, and as shown in table 2 is with the sub-frame property on the 8bit indication MBSFN frame in the LTE FDD network.
Table 2LTE FDD indicates the sub-frame property on the MBSFN frame with the bitmap mode of 8bit
| Subframe | Subframe # | 1 | |
|
Subframe #4 | Subframe #6 | Subframe #7 | Subframe #8 | Subframe #9 |
| Bit | Bit?0 | Bit?1 | Bit?2 | Bit?3 | Bit?4 | Bit?5 | Bit?6 | Bit?7 |
Another kind of mode is to adopt 3 bit to indicate the attribute of each subframe among the MBSFN frame; Indicate the indicating mode of 8 kinds of subframes respectively with Bit=000～111, that is, disposed 1 MBSFN subframe among the 000 indication MBSFN frame; 2 MBSFN subframe have been disposed among the 001 indication MBSFN frame; Disposed 3 MBSFN subframe among the 010 indication MBSFNframe ..., disposed 8 MBSFN subframe among the 111 indication MBSFN frame.Table 3 illustrated in LTE FDD network, adopt 3 bit to indicate the method for the attribute of each subframe among the MBSFN frame, the MBSFN frame of supposing each MBSFN frame is all from first subframe numbering beginning.
Table 3, LTE FDD indicates the sub-frame property on the MBSFN frame with the mode of 3bit
| 3bit | The MBSFN number of subframes | The Subframe numbering | 3bit | The MBSFN number of subframes | The Subframe numbering |
| 000 | 1 | 1 | 100 | 5 | 1，2，3，4，6 |
| 001 | 2 | 1，2 | 101 | 6 | 1，2，3，4，6，7 |
| 010 | 3 | 1，2，3 | 110 | 7 | 1，2，3，4，6，7，8 |
| 011 | 4 | 1，2，3，4 | 111 | 8 | 1，2，3，4，6，7，8，9 |
Can find out that second kind of subframe indicating mode lacks certain flexibility, for example; When in a radio frames, having disposed 1 MBSFN subframe, can be configured in principle on any one in 8 sub-frame, but the mode of this 3 bit indication; Just selected wherein a kind of, same, when in a frame, having disposed 2 MBSFN subframe; In principle also can be on any two of 8 sub-frame, but the mode of this 3 bit indication, also just selected wherein a kind of.
In present public technology, pointed out the indicating mode of sub-frame property of the MBSFN frame of LTE FDD, but also do not solved in LTE TDD system, the sub-frame property of how indicating MBSFN frame according to the various network configuration mode.In LTE TDD; Under the various network configuration mode; The number and the subframe numbers that can be configured to MBSFN subframe in MBSFN radio frames are variant, therefore, can not adopt the sub-frame property indicating mode that is similar to LTE FDD; Like this, just need a kind of sub-frame property indicating mode that is used for LTE TDD.
Summary of the invention
Consider in the LTE TDD system that exists in the correlation technique; How to indicate the problem of MBSFN frame sub-frame property to propose the present invention according to the various network configuration mode; For this reason; Main purpose of the present invention is to provide the indicating means and the device of attribute of wireless subframe in a kind of multicast/broadcast MBSFN frame, to address the above problem.
According to an aspect of the present invention, the indicating means of attribute of wireless subframe in a kind of multicast/broadcast MBSFN frame is provided, has been used for attribute in the long term evolution TDD system indication subframe that radio frames comprised.
Indicating means according to attribute of wireless subframe in the multicast/broadcast MBSFN frame of the embodiment of the invention comprises: for the heterogeneous networks configuration mode of system; Be different up-configuration mode that descending sub frame distributes, dispose respectively under each network configuration pattern that attribute is one or more subframes of MBSFN subframe for the multicast/broadcast subframe in the radio frames; In the message blocks of system broadcast message, be provided for representing the indication field of sub-frame property, and use the subframe of the value indication attribute of indication field as the MBSFN subframe.
Preferably; Above-mentioned to dispose under each network configuration pattern attribute in the radio frames respectively be that the operation of one or more subframes of MBSFN subframe is specially: under the various network configuration mode; The number of its descending sub frame is different with subframe numbers; The number that allows to be configured to the MBSFN subframe is also different with subframe numbers, and the number that can not be configured to the MBSFN subframe is also different with subframe numbers.
Preferably, in above-mentioned multicast/broadcast MBSFN frame in the indicating means of attribute of wireless subframe, do not having the bearing downlink synchronizing signal and do not having that configuration attribute is the subframe of MBSFN subframe in the descending sub frame of configuration-system broadcast.
Preferably, indicate in the operation of attribute as the subframe of MBSFN subframe in the above-mentioned value of indication field of using, the value of indication field indication attribute is one or more subframes of MBSFN subframe.
And in each radio frames, the attribute of configuration is that the quantity of one or more subframes of MBSFN subframe is less than or equal to 5.
Preferably, above-mentioned indication field takies 3 bits.
According to a further aspect in the invention, a kind of indicating device of attribute of wireless subframe is provided, has been used for attribute in the long term evolution TDD system indication subframe that radio frames comprised.
The indicating device of attribute of wireless subframe comprises in the multicast/broadcast MBSFN frame according to an embodiment of the invention: configuration module; Be used for heterogeneous networks configuration mode, dispose respectively under each network configuration pattern that attribute is one or more subframes of MBSFN subframe in the radio frames for system; Indicating module is used for the message blocks in system broadcast message, is provided for representing the indication field of sub-frame property, and uses the subframe of the value indication attribute of indication field as the MBSFN subframe.
Preferably, above-mentioned configuration module is not having the bearing downlink synchronizing signal and is not having that configuration attribute is the subframe of MBSFN subframe in the descending sub frame of configuration-system broadcast.
Preferably, above-mentioned configuration module is under the various network configuration mode, and the number of its descending sub frame is different with subframe numbers, and the number that allows to be configured to the MBSFN subframe is also different with subframe numbers, and the number that can not be configured to the MBSFN subframe is also different with subframe numbers.
Preferably, to be set to be used to indicate attribute be one or more subframes of MBSFN subframe to the value of above-mentioned indicating module indication field.
Wherein, above-mentioned indication field takies 3 bits.
Through above-mentioned at least one technical scheme of the present invention; Indicate the attribute under the heterogeneous networks configuration mode to be the MBSFN subframe through the value of using indication field; Solve the sub-frame property indicating mode ground problem of a kind of LTE of being used for TDD of the needs that exist in the correlation technique, can in LTE TDD system, indicate the sub-frame property of the MBSFNframe under the various network configuration mode.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the frame structure sketch map that is applied to the Long Term Evolution Frequency Division Multiplexing system according to correlation technique;
Fig. 2 is the frame structure sketch map that is applied to the Long Term Evolution time division multiplex system according to correlation technique;
Fig. 3 is the frame structure sketch map according to the multicast/broadcast on the SFN of correlation technique;
Fig. 4 is the flow chart according to the indicating means of attribute of wireless subframe in the multicast/broadcast MBSFN frame of the inventive method embodiment;
Fig. 5 is according to multicast/broadcast reference signal sketch map on the SFN of the inventive method embodiment;
Fig. 6 is the indication side's schematic representation of apparatus according to attribute of wireless subframe in the multicast/broadcast MBSFN frame of the inventive method embodiment.
Embodiment
To combine accompanying drawing to describe the embodiment of the invention in detail below.
Method embodiment
According to the embodiment of the invention, the indicating means of attribute of wireless subframe in a kind of multicast/broadcast MBSFN frame is provided, be used for attribute in the LTE TDD system indication subframe that radio frames comprised.
Fig. 4 is the flow chart according to the netsurfing implementation method of the embodiment of the invention, and is as shown in Figure 4, and this method comprises following processing:
Step S402; Heterogeneous networks configuration mode for system; Dispose respectively under each network configuration pattern, promptly under each up-descending sub frame assignment configuration pattern, attribute is one or more subframes of multicast/broadcast subframe on the SFN (MBSFN subframe) in the radio frames;
Step S404 in the message blocks of system broadcast message, is provided for representing the indication field of sub-frame property, and uses the subframe of the value indication attribute of indication field as the MBSFN subframe.
The technical scheme that provides through the embodiment of the invention; Solve the sub-frame property indicating mode ground problem of a kind of LTE of being used for TDD of the needs that exist in the correlation technique, can in the LTETDD system, indicate the sub-frame property of the MBSFN frame under the various network configuration mode.
Generally speaking; Under the MBSFN radiation pattern; Signal is estimated to adopt the distinctive reference signal in common sub-district (Cell-specific reference signal), is inserted in the reference signal in the MBSFN subframe but adopt, and this reference channel adopts the radiation pattern of MBSFN; Just identical reference signal is all adopted in all sub-districts of having participated in the MBSFN mode, is referred to as MBSFN reference signal (multicast/broadcast reference signal on the SFN).
In radio frames; The MBSFN subframe adopts MBSFN referencesignal sketch map as shown in Figure 4; According to 3GPP (third generation partner program) agreement physical layer specification; MBSFN reference signal adopts antenna part 4 (antenna port 4) to launch, i.e. R4 among Fig. 5 (sending the character position of reference signal with antenna part 4).Each MBSFN subframe has 2 time slots (slot), time-gap number be (2i, 2i+1); Wherein, i is subframe numbers (subframe numbers of LTE FDD and TDD all is from 0-9), referring to Fig. 1 and Fig. 2; Previous time slot is even number time slot (even slot), and a back time slot is that each time slot of odd number time slot (odd slot) has 6 symbols, L=0～5; Each MBSFN frame has 12 symbols, its reference signal on the 3rd symbol of each time slot, L=2.
Preferably, in step S402, under the various network configuration mode, the number of its descending sub frame is different with subframe numbers, and the number that allows to be configured to the MBSFN subframe is also different with subframe numbers, and the number that can not be configured to the MBSFN subframe is also different with subframe numbers.
Preferably, in step S402, can not have the bearing downlink synchronizing signal and not have that configuration attribute is the subframe of MBSFN subframe in the descending sub frame of configuration-system broadcast.
Particularly; Because being the subframe of MBSFN, attribute can only be configured in the downlink pattern; In LTE TDD system; At all 7 kinds of configuration modes (as shown in table 1), subframe# 2 is configured to up emission mode, so LTE TDD subframe# 2 can not be configured to MBSFN subframe.
Simultaneously; Physical layer specification according to the 3GPP agreement; The master sync signal of LTE TDD system is positioned at the 3rd symbol (being L=2) of first time slot (even number time slot) of wireless sub-frame (subframe) #1 and #6; If subframe # 1 and #6 are configured to MBSFN subframe, then can cause the reference signal of MBSFN subframe and the position conflict of master sync signal, so subframe# 1 and #6 can not be configured to the MBSFN subframe in LTE TDD system.
In LTE TDD system; Dispose downlink synchronous signal on the subframe# 0 of each radio frames and the subframe# 5, and disposed system broadcast message, as: message one (the SYSTEM INFORMATION 1 that is configured to system information on last SI-M of being configured to of subframe# 0 and the subframe# 5; Abbreviate SI-1 as); So this two sub-frame can not be configured to the MBSFN subframe, i.e. LTE TDD system, subframe# 0 and subframe# 5 can not be configured to the MBSFN subframe.
Based on foregoing, can find out, in LTE TDD system, subframe# 0, #1; #2, #5, #6 can not be configured to MBSFN subframe, and the subframe that can be configured to MBSFNsubframe has 5 at most under 7 kinds of network configuration patterns, that is: subframe# 3; #4, #7, #8, #9.
Based on foregoing, according to the various network configuration mode, further can obtain following analysis result, the number of MBSFN subframe is different under the various network configuration mode, and is as shown in table 4 below:
In other message blocks of the system broadcast message of LTE TDD; Like system information-main message (SYSTEM INFORMATION MASTER; Abbreviate SI-M as) in; Indicated 7 kinds of configuration modes (as shown in table 1) that different up-descending sub frames distributes of this sub-district, the UE that resides in the LTE TDD sub-district can be through reading the configuration mode that SI-M knows this sub-district.In step S404, the configuration mode of coupling system message blocks can be indicated the sub-frame property on the MBSFN frame with the indication field of 3bit.For example, can to indicate attribute be one or more subframes of MBSFN subframe to the value of indication field.
Below in conjunction with the network configuration pattern of LTE TDD System information block, indicate the sub-frame property on the MBSFN frame with the sub-frame property indicating mode of 3bit, as shown in table 5 below.
1) it is 0 o'clock at LTE TDD subzone network configuration mode
The neither one subframe can be configured to MBSFN subframe, and this moment, the sub-frame property indicated value of 3bit was meaningless;
2) it is 1 o'clock at LTE TDD subzone network configuration mode
2 sub-frame are arranged; Be that subframe #4 and #9 can be configured to MBSFN subframe; And can dispose 1 or 2 MBSFN subframe; Have 3 kinds of different MBSFNsubframe configuration modes, at this moment corresponding these the 3 kinds different MBSFN subframe configuration modes of 3 sub-frame attribute indicated values in the sub-frame property indicating mode of 3bit; At this moment, can use 000 expression subframe #4 to be the MBSFN subframe, use 001 expression subframe #9 to be the MBSFN subframe, use 010 expression subframe #4 and subframe #9 to be the MBSFN subframe;
3) when LTE TDD cell configuration is pattern 2
4 sub-frame are arranged; Be subframe # 3; #4, #8 and #9 can be configured to MBSFNsubframe, and can be configured to 1,2,3 or 4 MBSFN subframe; Have 15 kinds of different MBSFN subframe configuration modes, this moment 3bit the sub-frame property indicating mode in 3 sub-frame attribute indicated value correspondences, 8 kinds of different MBSFNsubframe configuration modes wherein; At this moment, can use 000 expression subframe #4 to be the MBSFN subframe, use 001 expression subframe #8 to be the MBSFN subframe; Use 010 expression subframe #9 to be the MBSFN subframe; Use 011 expression subframe #4 and subframe #8 to be the MBSFN subframe, use 100 expression subframe #4 and subframe #9 to be the MBSFN subframe, use 101 expression subframe #8 and subframe #9 to be the MBSFN subframe; Use 110 expression subframe #4, subframe #8 and subframe #9 to be the MBSFN subframe, use 111 expression subframe # 3, subframe #4, subframe #8 and subframe #9 to be the MBSFN subframe;
4) when LTE TDD cell configuration is mode 3
3 sub-frame are arranged; Be subframe #7; #8 and #9 can be configured to MBSFN subframe; And can be configured to 1,2 or 3 MBSFN subframe, have 7 kinds of different MBSFN subframe configuration modes, this moment 3bit the sub-frame property indicating mode in corresponding these the 7 kinds different MBSFN subframe configuration modes of 7 sub-frame attribute indicated values; At this moment; Can use 000 expression subframe #7 to be the MBSFN subframe, use 001 expression subframe #8 to be the MBSFN subframe, use 010 expression subframe #9 to be the MBSFN subframe; Use 011 expression subframe #7 and subframe #8 to be the MBSFN subframe; Use 100 expression subframe #7 and subframe #9 to be the MBSFN subframe, use 101 expression subframe #8 and subframe #9 to be the MBSFN subframe, use 110 expression subframe #7, subframe #8 and subframe #9 to be the MBSFN subframe;
5) when LTE TDD cell configuration is pattern 4
4 sub-frame are arranged; Be subframe #4; #7, #8 and #9 can be configured to MBSFNsubframe, and can be configured to 1,2,3 or 4 MBSFN subframe; Have 15 kinds of different MBSFN subframe configuration modes, this moment 3bit the sub-frame property indicating mode in 8 sub-frame attribute indicated value correspondences, 8 kinds of different MBSFNsubframe configuration modes wherein; At this moment, can use 000 expression subframe #4 to be the MBSFN subframe, use 001 expression subframe #8 to be the MBSFN subframe; Use 010 expression subframe #9 to be the MBSFN subframe; Use 011 expression subframe #4 and subframe #8 to be the MBSFN subframe, use 100 expression subframe #4 and subframe #9 to be the MBSFN subframe, use 101 expression subframe #8 and subframe #9 to be the MBSFN subframe; Use 110 expression subframe #4, subframe #8 and subframe #9 to be the MBSFN subframe, use 111 expression subframe #4, subframe #7, subframe #8 and subframe #9 to be the MBSFN subframe;
6) when LTE TDD cell configuration is pattern 5
5 sub-frame are arranged; Be subframe # 3, #4, #7; #8 and #9 can be configured to MBSFNsubframe; And can be configured to 1,2,3,4 or 5 MBSFN subframe, have 21 kinds of different MBSFN subframe configuration modes, this moment 3bit the sub-frame property indicating mode in 8 sub-frame attribute indicated value correspondences, 8 kinds of different MBSFNsubframe configuration modes wherein; At this moment; Can use 000 expression subframe #4 to be the MBSFN subframe; Use 001 expression subframe #8 to be the MBSFN subframe, use 010 expression subframe #9 to be the MBSFN subframe, use 011 expression subframe #4 and subframe #8 to be the MBSFN subframe; Use 100 expression subframe #4 and subframe #9 to be the MBSFN subframe; Use 101 expression subframe #4, subframe #8 and subframe #9 to be the MBSFN subframe, use 110 expression subframe #4, subframe #7, subframe #8 and subframe #9 to be the MBSFN subframe, use 111 expression subframe # 3, subframe #4, subframe #7, subframe #8 and subframe #9 to be the MBSFN subframe;
7) when LTE TDD cell configuration is pattern 6
There is and has only 1 sub-frame; Be that subframe #9 can and must be configured to MBSFNsubframe; Has only a kind of MBSFN subframe configuration mode, at this moment all corresponding this MBSFNsubframe configuration mode of whole sub-frame property indicated values in the sub-frame property indicating mode of 3bit; At this moment, can be with 000,001 ..., any expression subframe #9 in 111 is the MBSFN subframe.
Table 5LTE TDD adopts the MBSFN sub-frame property indicating mode of 3bit
Device embodiment
According to the embodiment of the invention, the indicating device of attribute of wireless subframe in a kind of multicast/broadcast MBSFN frame is provided, be used for attribute in the long term evolution TDD system indication subframe that radio frames comprised.
Fig. 6 is the structural representation according to the indicating device of the attribute of wireless subframe of the embodiment of the invention, and is as shown in Figure 6, and this device comprises:
Indicating module 20 is used for the message blocks in system broadcast message, is provided for representing the indication field of sub-frame property, and uses the subframe of the value indication attribute of indication field as the MBSFN subframe; This indicating module 20 can be connected to configuration module 10, is one or more subframes of MBSFN with the attribute that disposes in the configuration module 10, uses the subframe of corresponding indication field value indication attribute as the MBSFN subframe.
The indicating device of the attribute of wireless subframe that provides through the embodiment of the invention; Solve the sub-frame property indicating mode ground problem of a kind of LTE of being used for TDD of the needs that exist in the correlation technique, can in LTE TDD system, indicate the sub-frame property of the MBSFNframe under the various network configuration mode.
Preferably, above-mentioned configuration module is not having the bearing downlink synchronizing signal and is not having that configuration attribute is the subframe of MBSFN subframe in the descending sub frame of configuration-system broadcast.
Preferably, above-mentioned configuration module is under the various network configuration mode, and the number of its descending sub frame is different with subframe numbers, and the number that allows to be configured to the MBSFN subframe is also different with subframe numbers, and the number that can not be configured to the MBSFN subframe is also different with subframe numbers.
Preferably, to be set to be used to indicate attribute be one or more subframes of MBSFN subframe to the value of above-mentioned indicating module indication field.
Preferably, above-mentioned indication field takies 3 bits.
As stated; Indicating means and/or device by means of attribute of wireless subframe in the multicast/broadcast MBSFN frame provided by the invention; Solve the sub-frame property indicating mode ground problem of a kind of LTE of being used for TDD of the needs that exist in the correlation technique, can in LTE TDD system, indicate the sub-frame property of the MBSFN frame under the various network configuration mode.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the indicating means of attribute of wireless subframe in the multicast/broadcast MBSFN frame, the attribute of the subframe that is used for being comprised at long term evolution TDD system indication MBSFN frame is characterized in that said method comprises:
Heterogeneous networks configuration mode for system; Dispose respectively under each network configuration pattern that attribute is one or more subframes of MBSFN subframe for the multicast/broadcast subframe in the radio frames; Wherein, Said to dispose under each network configuration pattern attribute in the radio frames respectively be that one or more subframes of MBSFN subframe comprise for the multicast/broadcast subframe: under the various network configuration mode; The number of its descending sub frame is different with subframe numbers, and the number that allows to be configured to the MBSFN subframe is also different with subframe numbers, and the number that can not be configured to the MBSFN subframe is also different with subframe numbers;
In the message blocks of system broadcast message, be provided for representing the indication field of sub-frame property, and use the subframe of the value indication attribute of said indication field as the MBSFN subframe.
2. method according to claim 1 is characterized in that, up-descending assignment configuration pattern that the network configuration pattern is meant.
3. method according to claim 1 is characterized in that, is not having the bearing downlink synchronizing signal and is not having that configuration attribute is the subframe of MBSFN subframe in the descending sub frame of configuration-system broadcast.
4. method according to claim 1 is characterized in that, indicates in the operation of attribute as the subframe of MBSFN subframe in the said value of said indication field of using, and the value of said indication field indication attribute is one or more subframes of MBSFN subframe.
5. method according to claim 1 is characterized in that, in each said MBSFN frame, the attribute of configuration is that the quantity of one or more subframes of MBSFN subframe is less than or equal to 5, and said indication field takies 3 bits.
6. the indicating device of attribute of wireless subframe in the multicast/broadcast MBSFN frame is used for the attribute in the long term evolution TDD system indication subframe that radio frames comprised, and it is characterized in that said device comprises:
Configuration module; Be used for heterogeneous networks configuration mode, dispose respectively under each network configuration pattern that attribute is one or more subframes of MBSFN subframe in the MBSFN frame, wherein for system; Said configuration module is under the various network configuration mode; The number of its descending sub frame is different with subframe numbers, and the number that allows to be configured to the MBSFN subframe is also different with subframe numbers, and the number that can not be configured to the MBSFN subframe is also different with subframe numbers;
Indicating module is used for the message blocks in system broadcast message, is provided for representing the indication field of sub-frame property, and uses the subframe of the value indication attribute of said indication field as the MBSFN subframe.
7. device according to claim 6 is characterized in that, said configuration module is not having the bearing downlink synchronizing signal and do not having that configuration attribute is the subframe of MBSFN subframe in the descending sub frame of configuration-system broadcast.
8. device according to claim 6 is characterized in that, it is one or more subframes of MBSFN subframe that the value of the said indication field of said indicating module is set to be used to indicate attribute.
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| EP2639981B1 (en) | 2010-11-08 | 2020-05-27 | Samsung Electronics Co., Ltd | Method and device for receiving a subframe in different forms in a wireless communication system |
| CN102176692A (en) * | 2011-01-30 | 2011-09-07 | 电信科学技术研究院 | Method and equipment for processing uplink data transmission |
| CN107040352A (en) * | 2016-02-03 | 2017-08-11 | 中兴通讯股份有限公司 | Parameter indicating means, base station and terminal based on MIB |
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| CN101047438A (en) * | 2007-03-27 | 2007-10-03 | 中兴通讯股份有限公司 | Method for transceiving MBMS data using reframe in TD-SCDMA |
| CN101159902A (en) * | 2007-10-26 | 2008-04-09 | 中兴通讯股份有限公司 | Time slot configuration method of carrier cell dedicated for multimedia broadcasting multicast system |
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| CN101159902A (en) * | 2007-10-26 | 2008-04-09 | 中兴通讯股份有限公司 | Time slot configuration method of carrier cell dedicated for multimedia broadcasting multicast system |
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