CN101489314A - Expansion sub-frame information sending, parsing, processing method, expansion sub-frame description method - Google Patents
Expansion sub-frame information sending, parsing, processing method, expansion sub-frame description method Download PDFInfo
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Abstract
The present invention discloses a method for transmitting expanded sub-frame information, wherein, a base station generates expanded sub-frame description field with bit number of [sigma(Segi-1)], wherein, T is the bit segment number included by the expanded sub-frame description field.Segi-1 is the bit number included by the i-th bit segment. Segi is the number of sub-frame included by the i-th B-kind segment in one frame. Furthermore the j-th bit in the i-th bit segment represents whether the j-th sub-frame and the (j+1)th sub-frame belong to a same expanded sub-frame in the i-th B-kind segment, wherein, i=1, ..., T; j=1, ..., Segi. The B-kind segment is the segment which has more than one sub-frame in a plurality of segments of one frame. The base station transmits expanded sub-frame description information to the terminal through downlink channel. Furthermore the expanded sub-frame description field is carried in the expanded sub-frame description information. Additionally, the invention also discloses an expanded sub-frame information analyzing method, a processing method, an expanded sub-frame description method and device thereof. The expanded sub-frame can be described with lower expenditure through the method of the invention.
Description
Technical field
The present invention relates to field of data transmission, particularly, relate to expansion sub-frame transmission, parsing, processing method and expansion sub-frame description method and device.
Background technology
In data communication system, the base station is to show the equipment that terminal provides service, and the base station communicates by Uplink/Downlink and terminal, and wherein, the direction of terminal is arrived in the descending base station that is meant, the up direction that is meant terminal to base station.A plurality of terminals can send data by up link to the base station simultaneously, also can receive data simultaneously from the base station by down link.
The base station communicates by relevant criterion (as LTE, UMB, 802.16) frame structures specified and counterpart terminal.Generally, the length of every frame is fixed, and every frame is divided into several subframes, depends on network planning demand, and these subframes are used to transmit ascending data, perhaps are used to transmitting downlink data.Consider the problem such as expense, service quality of control messages, subframe adjacent and that transmission direction is identical can be formed an expansion sub-frame, subframe and/or expansion sub-frame adjacent and that transmission direction is identical can constitute a segmentation, at present, when carrying out the description of expansion sub-frame, a common subframe just needs a bit, and expense is bigger, and therefore how describing by less expense that an expansion sub-frame which adjacent sub-frame is made of is a problem that is worth research.
Summary of the invention
Consider the bigger problem of describing method expense of the expansion sub-frame that exists in the correlation technique and propose the present invention.For this reason, the present invention aims to provide a kind of expansion sub-frame description method and analytic method, is used for describing expansion sub-frame or further resolving subframe with less expense.
According to an aspect of the present invention, provide a kind of expansion sub-frame information sending method, be used for the formation of base station notice termination extension subframe, subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame.
Comprise according to expansion sub-frame information sending method of the invention process: the base station generates bit number and is
The expansion sub-frame description field, wherein, the bit hop count that T comprises for the expansion sub-frame description field, Seg
i-1 is i the bit number that bit section is included, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame, and j bit in i bit section represent whether j subframe and j+1 subframe in i the category-B segmentation belong to same expansion sub-frame; Wherein, i=1 ..., T, j=1 ... Seg
i-1, category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation; The base station sends expansion sub-frame description message by down channel to terminal, and carries the expansion sub-frame description field in expansion sub-frame description message.
Wherein, above-mentioned base station generation bit number is
The operation of expansion sub-frame description field be specially: the situation of category-B segmentation is determined in the base station, specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
iThe base station generates and i i the bit section that the category-B segmentation is corresponding successively, makes that i the included bit number of bit section is (Seg
i-1), wherein, whether belongs to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set; Continuous T the bit section that the base station will generate is as the expansion sub-frame description field.
Wherein, the above-mentioned operation that i j bit in the bit section is set is specially: when j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in i bit section was set to 1; When j subframe in i the category-B segmentation and j+1 subframe did not belong to same expansion sub-frame, j bit in i bit section was set to 0.
Preferably, may further include the segmentation description field in the above-mentioned expansion sub-frame description message, be used to describe the segmentation situation of a frame.
According to a further aspect in the invention, provide a kind of expansion sub-frame information analytic method, be used for the formation of terminal parses expansion sub-frame, subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame.
Expansion sub-frame information analytic method according to the embodiment of the invention comprises following processing: terminal receives the expansion sub-frame description message from the base station, wherein, carry the expansion sub-frame description field that the segmentation description field of the segmentation situation that is used to describe a frame and being used to is described the formation of expansion sub-frame in the expansion sub-frame description message; Terminal reads the segmentation description field, obtains T and Seg
iWherein, T is the bit hop count that the expansion sub-frame description field in the expansion sub-frame description message comprises, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame, category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation; Terminal reads the expansion sub-frame description field, with the length of obtaining is
Bit sequence be divided into T bit section, make that i the included bit number of bit section is (Seg
i-1); Whether terminal belongs to same expansion sub-frame according to j subframe and j+1 the subframe in i the category-B segmentation of j bit decision in i the bit section.
Wherein, terminal is specially according to the operation whether j subframe in i the category-B segmentation of j bit decision in i the bit section and j+1 subframe belong to same expansion sub-frame: when j bit in i the bit section was 1, j subframe and j+1 subframe in i category-B segmentation of terminal judges belonged to same expansion sub-frame; When j bit in i the bit section was 0, j subframe and j+1 subframe in i category-B segmentation of terminal judges did not belong to same expansion sub-frame.
According to a further aspect in the invention, provide a kind of expansion sub-frame information processing method, be used for base station and terminal expansion sub-frame information is sent or dissection process, subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame.
Expansion sub-frame information processing method according to the embodiment of the invention comprises following processing: the base station generates bit number and is
The expansion sub-frame description field, wherein, the bit hop count that T comprises for the expansion sub-frame description field, Seg
i-1 is i the bit number that bit section is included, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame, and j bit in i bit section represent whether j subframe and j+1 subframe in i the category-B segmentation belong to same expansion sub-frame; Wherein, i=1 ..., T, j=1 ... Seg
i-1, category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation; The base station sends expansion sub-frame description message by down channel to terminal, and carries the expansion sub-frame description field in expansion sub-frame description message; Terminal is determined the formation of expansion sub-frame in the frame according to expansion sub-frame description message.
Preferably, generation bit number in base station is
The operation of expansion sub-frame description field be specially: the situation of category-B segmentation is determined in the base station, specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
iThe base station generates and i i the bit section that the category-B segmentation is corresponding successively, makes that i the included bit number of bit section is (Seg
i-1), wherein, whether belongs to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set; Continuous T the bit section that the base station will generate is as the expansion sub-frame description field.
Preferably, the above-mentioned operation that i j bit in the bit section is set is specially: when j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in i bit section was set to 1; When j subframe in i the category-B segmentation and j+1 subframe did not belong to same expansion sub-frame, j bit in i bit section was set to 0.
Wherein, further comprise the segmentation description field in the expansion sub-frame description message, be used to describe the segmentation situation of a frame.
Based on foregoing, terminal determines that according to expansion sub-frame description message the operation of the formation of expansion sub-frame in the frame is specially: terminal reads the segmentation description field, obtains T and Seg
iTerminal reads the expansion sub-frame description field, with the length of obtaining is
Bit sequence be divided into T bit section, make that i the included bit number of bit section is (Seg
i-1); Whether terminal belongs to same expansion sub-frame according to j subframe and j+1 the subframe in i the category-B segmentation of j bit decision in i the bit section.
Preferably, when j bit in i the bit section was 1, j subframe and j+1 subframe in i category-B segmentation of terminal judges belonged to same expansion sub-frame; When j bit in i the bit section was 0, j subframe and j+1 subframe in i category-B segmentation of terminal judges did not belong to same expansion sub-frame.
In addition, the 1st bit section in T bit section comprises the 1st to
Individual bit, m bit section comprises
To
Individual bit, wherein, m=2 ..., T.
According to a further aspect in the invention, provide a kind of expansion sub-frame description method, be used to describe the formation of expansion sub-frame.
Expansion sub-frame description method according to the embodiment of the invention comprises following processing: determine the situation of the category-B segmentation that comprised in the segmentation of a frame, specifically comprise: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i, wherein, category-B is segmented into the number of sub-frames that comprises greater than 1 segmentation, i=1 ..., T; Generate and i i the bit section that the category-B segmentation is corresponding successively, make that i the included bit number of bit section is Seg
i-1, wherein, whether belong to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set; With continuous T bit section generating as the expansion sub-frame description field.
Preferably, in above-mentioned processing, the operation that i j bit in the bit section is set is specially: when j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in i bit section was set to 1; J bit when j subframe in i the category-B segmentation and j+1 subframe do not belong to same expansion sub-frame in i bit section is set to 0.
In accordance with a further aspect of the present invention, provide a kind of expansion sub-frame description device, be used to describe expansion sub-frame, subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame.
Expansion sub-frame description device according to the present invention comprises: the segmentation determination module is used for determining specifically comprising the situation of the category-B segmentation that segmentation comprised of a frame: determine the number T of category-B segmentation, determine the number of sub-frames Seg that i category-B segmentation comprised
i, wherein, category-B is segmented into the number of sub-frames that comprises greater than 1 segmentation, i=1 ..., T; The bit section generation module is used for generating successively and i i the bit section that the category-B segmentation is corresponding, makes that i the included bit number of bit section is Seg
i-1, wherein, whether belong to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set; Expansion sub-frame description field generation module, continuous T the bit section that is used for the bit section generation module is generated is as the expansion sub-frame description field.
By above-mentioned at least one technical scheme of the present invention, whether belong to same expansion sub-frame by the number of sub frames that comprises in the segmentation according to a frame greater than adjacent two subframes in 1 segmentation and such segmentation and carry out expansion sub-frame description, compare and prior art, can reduce the expense of expansion sub-frame description.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the expansion sub-frame description method of the inventive method embodiment one;
Fig. 2 is the flow chart according to the expansion sub-frame information transmission of the inventive method embodiment two;
Fig. 3 is the flow chart according to the expansion sub-frame information analytic method of the inventive method embodiment three;
Fig. 4 is the flow chart according to the expansion sub-frame information processing method of the inventive method embodiment four;
Fig. 5 is the schematic diagram according to the example 1 of the inventive method embodiment;
Fig. 6 is the schematic diagram according to the example 2 of the inventive method embodiment;
Fig. 7 is the structured flowchart according to the expansion sub-frame description device of apparatus of the present invention embodiment.
Embodiment
As mentioned above, at present the expansion sub-frame description method expense that adopts is bigger, and in view of this, the embodiment of the invention provides a kind of expansion sub-frame description method and device, expansion sub-frame analytic method.
In the following description, suppose that a frame is made of M subframe, these subframes constitute N segmentation, each segmentation is made of the identical subframe of plurality of adjacent transmission direction, the transmission direction difference of adjacent two segmentations, and also the number of sub-frames that comprises in the 1st～N segmentation has T greater than 1 segmentation, for convenience of description, hereinafter, such segmentation is called the category-B segmentation, the number of sub-frames that this T segmentation comprises is respectively Seg
i(i=1 ..., T), and Seg
i1 (i=1 .. T), and can inform these information of terminal in advance.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment one
According to the embodiment of the invention, a kind of expansion sub-frame description method is provided, be used to describe the formation of expansion sub-frame.
As shown in Figure 1, the expansion sub-frame description method according to the embodiment of the invention comprises following processing (step S102-step S106):
Step S102, the situation of the category-B segmentation of determining to be comprised in the segmentation of a frame (category-B is segmented into the number of sub-frames that comprises greater than 1 segmentation) specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i, i=1 ..., T;
Step S104 generates and i i the bit section that the category-B segmentation is corresponding successively, makes that i the included bit number of bit section is Seg
i-1, wherein, whether belong to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set;
Step S106, with continuous T bit section generating as the expansion sub-frame description field.
Preferably, in above-mentioned steps S104, the operation that i j bit in the bit section is set is specially: when j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in i bit section was set to 1; J bit when j subframe in i the category-B segmentation and j+1 subframe do not belong to same expansion sub-frame in i bit section is set to 0.
By top processing, can use
Individual bit is for describing expansion sub-frame.
Method embodiment two
According to the embodiment of the invention, a kind of expansion sub-frame information sending method is provided, be used for the formation of base station notice termination extension subframe.
As shown in Figure 2, the expansion sub-frame information sending method according to the embodiment of the invention comprises following processing (step S202-step S204):
Step S202, the base station generates bit number and is
The expansion sub-frame description field, wherein, the bit hop count that T comprises for the expansion sub-frame description field, Seg
i-1 is i the bit number that bit section is included, Seg
iIt is the number of sub-frames that i the category-B segmentation (category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation) in the frame comprised, and j bit in i bit section represents whether j subframe and j+1 subframe in i the category-B segmentation belong to same expansion sub-frame (can be called segmentation differential coding mode, will be described in detail hereinafter); Wherein, i=1 ..., T, j=1 ... Seg
i-1;
Step S204, the base station sends expansion sub-frame description message by down channel to terminal, and carries the expansion sub-frame description field in expansion sub-frame description message.
In step S202, the base station generates bit number and is
The operation of expansion sub-frame description field be specially:
(1) situation of category-B segmentation is determined in the base station, specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i
(2) base station generates and i i the bit section that the category-B segmentation is corresponding successively, makes that i the included bit number of bit section is (Seg
i-1), wherein, whether belongs to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set;
(3) base station continuous T the bit section that will generate is as the expansion sub-frame description field.
By top description as can be seen, this expansion sub-frame description field is that length is
Bit sequence, it comprises T bit section.Particularly, comprise number of sub-frames greater than expansion sub-frame in first segmentation in 1 T the segmentation (that is, above-mentioned category-B segmentation) form situation by adopt in the above-mentioned bit sequence that segmentation differential coding mode obtains the
Individual bit is described, these bits constitute expansion sub-frame in 1, the second segmentation of bit section form situation by adopt in the above-mentioned bit sequence that segmentation differential coding mode obtains the
Individual bit is described, and these bits constitute bit section 2, by that analogy, in T segmentation expansion sub-frame form situation by employing segmentation differential coding mode in the above-mentioned bit sequence obtain the
Individual bit is described, and these bits constitute bit section T.
Wherein, segmentation differential coding mode is meant among the bit section i by comprising (Seg
i-1) individual bit is described and is comprised number of sub-frames greater than i the Seg that segmentation comprises in 1 T the segmentation
iExpansion sub-frame is formed situation in the individual subframe, and j bit represents whether number of sub-frames belongs to same expansion sub-frame greater than j subframe in (j+1) the individual subframe in i the segmentation in 1 T the segmentation and this segmentation among the bit section i, j=1 wherein .., (Seg
i-1), this bit value represents that for ' 1 ' (j+1) individual subframe and j subframe belong to same expansion sub-frame in this segmentation usually, represents that (j+1) individual subframe and j subframe do not belong to same expansion sub-frame in this segmentation for ' 0 '.
For expansion sub-frame description message above-mentioned, may further include the segmentation description field, be used to describe the segmentation situation of a frame.
The technique scheme that provides by the embodiment of the invention can be so that the base station be notified to terminal with less signaling consumption with the relevant information of expansion sub-frame.
Method embodiment three
According to the embodiment of the invention, a kind of expansion sub-frame information analytic method is provided, be used for the formation of terminal parses expansion sub-frame.
As shown in Figure 3, the expansion sub-frame information analytic method according to the embodiment of the invention comprises following processing (step S302-step S308):
Step S302, terminal receives the expansion sub-frame description message from the base station, wherein, the expansion sub-frame description field that carries the segmentation description field of the segmentation situation that is used to describe a frame in the expansion sub-frame description message and be used to describe the formation of expansion sub-frame;
Step S304, terminal reads the segmentation description field, obtains T and Seg
iWherein, T is the bit hop count that the expansion sub-frame description field in the expansion sub-frame description message comprises, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame;
Step S306, terminal reads the expansion sub-frame description field, with the length of obtaining is
Bit sequence be divided into T bit section, make that i the included bit number of bit section is (Seg
i-1);
Step S308, whether terminal belongs to same expansion sub-frame according to j subframe and j+1 the subframe in i the category-B segmentation of j bit decision in i the bit section.
Wherein, in step S308, terminal is specially according to the operation whether j subframe in i the category-B segmentation of j bit decision in i the bit section and j+1 subframe belong to same expansion sub-frame: when j bit in i the bit section was 1, j subframe and j+1 subframe in i category-B segmentation of terminal judges belonged to same expansion sub-frame; When j bit in i the bit section was 0, j subframe and j+1 subframe in i category-B segmentation of terminal judges did not belong to same expansion sub-frame.
Method embodiment four
According to the embodiment of the invention, a kind of expansion sub-frame information processing method is provided, be used for the base station expansion sub-frame information is informed terminal, simultaneously, terminal is known the formation of expansion sub-frame by resolving this expansion sub-frame information.
As shown in Figure 4, the expansion sub-frame analytic method according to the embodiment of the invention comprises following processing (step S402-step S406):
Step S402, the base station generates bit number and is
The expansion sub-frame description field, wherein, the bit hop count that T comprises for the expansion sub-frame description field, Seg
i-1 is i the bit number that bit section is included, Seg
iIt is the number of sub-frames that i the category-B segmentation (category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation) in the frame comprised, and j bit in i bit section represents whether j subframe and j+1 subframe in i the category-B segmentation belong to same expansion sub-frame (can be called segmentation differential coding mode, will be described in detail hereinafter); Wherein, i=1 ..., T, j=1 ... Seg
i-1;
Step S404, the base station sends expansion sub-frame description message by down channel to terminal, and carries the expansion sub-frame description field in expansion sub-frame description message;
Step S406, terminal is determined the formation of expansion sub-frame in the frame according to expansion sub-frame description message.
In step S402, the base station generates bit number and is
The operation of expansion sub-frame description field be specially:
(1) situation of category-B segmentation is determined in the base station, specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i
(2) base station generates and i i the bit section that the category-B segmentation is corresponding successively, makes that i the included bit number of bit section is (Seg
i-1), wherein, whether belongs to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set;
(3) base station continuous T the bit section that will generate is as the expansion sub-frame description field.
By top description as can be seen, this expansion sub-frame description field is that length is
Bit sequence, it comprises T bit section.Particularly, comprise number of sub-frames greater than expansion sub-frame in first segmentation in 1 T the segmentation (that is, above-mentioned category-B segmentation) form situation by adopt in the above-mentioned bit sequence that segmentation differential coding mode obtains the
Individual bit is described, these bits constitute expansion sub-frame in 1, the second segmentation of bit section form situation by adopt in the above-mentioned bit sequence that segmentation differential coding mode obtains the
Individual bit is described, and these bits constitute bit section 2, by that analogy, in T segmentation expansion sub-frame form situation by employing segmentation differential coding mode in the above-mentioned bit sequence obtain the
Individual bit is described, and these bits constitute bit section T.
Wherein, segmentation differential coding mode is meant among the bit section i by comprising (Seg
i-1) individual bit is described and is comprised number of sub-frames greater than i the Seg that segmentation comprises in 1 T the segmentation
iExpansion sub-frame is formed situation in the individual subframe, and j bit represents whether number of sub-frames belongs to same expansion sub-frame greater than j subframe in (j+1) the individual subframe in i the segmentation in 1 T the segmentation and this segmentation among the bit section i, j=1 wherein .., (Seg
i-1), this bit value represents that for ' 1 ' (j+1) individual subframe and j subframe belong to same expansion sub-frame in this segmentation usually, represents that (j+1) individual subframe and j subframe do not belong to same expansion sub-frame in this segmentation for ' 0 '.
For expansion sub-frame description message above-mentioned, may further include the segmentation description field, be used to describe the segmentation situation of a frame.For example, table 1 has provided the base station and has sent the message format of describing expansion sub-frame composition information to terminal by down channel, can comprise parts such as segmentation descriptor field, expansion sub-frame description field in this message, if terminal is according to only comprising two segmentations in the known frame of standard, and first segmentation is used for transmitting downlink data, second segmentation is used for transmit ascending data, then segmentation descriptor field can show as describes the descending sub frame number, or the proportionate relationship of description descending sub frame number and sub-frame of uplink number, or the sub-frame of uplink number is described.Terminal is received the segmentation situation that obtains the frame that is made of several subframes after the segmentation descriptor field, i.e. information such as the data transfer direction of segmentation, number of sub-frames and subframe position generate the corresponding bits sequence according to the expansion sub-frame description field afterwards again.
The form of table 1, expansion sub-frame description message
| Syntax | Notes |
| …… | |
| Segmentation descriptor field | Segmentation situation in the descriptor frame |
| The expansion sub-frame description field | The method that proposes by the present invention generates the corresponding bits sequence |
| …… |
Based on foregoing, in step S406, terminal determines that according to expansion sub-frame description message the operation of the formation of expansion sub-frame in the frame is specially:
(1) terminal reads the segmentation description field, obtains T and Seg
i
(2) terminal reads the expansion sub-frame description field, with the length of obtaining is
Bit sequence be divided into T bit section, make that i the included bit number of bit section is (Seg
i-1);
(3) whether terminal belongs to same expansion sub-frame according to j subframe and j+1 subframe in i the category-B segmentation of j bit decision in i the bit section.Preferably, when j bit in i the bit section was 1, j subframe and j+1 subframe in i category-B segmentation of terminal judges belonged to same expansion sub-frame; When j bit in i the bit section was 0, j subframe and j+1 subframe in i category-B segmentation of terminal judges did not belong to same expansion sub-frame.
By can better understanding the present invention in conjunction with following example.
Example 1: based on the frame structure of 5ms
As shown in Figure 5, TDD (the time division duplex that length is 5ms, time division duplex) frame is made up of 8 subframes, wherein subframe DL0～DL5 is used for transmitting downlink data, subframe UL0～UL1 is used for transmitting downlink data, and then this frame is made up of two segmentations, and segmentation 1 comprises preceding 6 subframes and is used for transmitting downlink data, segmentation 2 comprises last two subframes and is used for transmit ascending data, and the number of sub frames that these two segmentations comprise is all greater than 1.
Suppose that terminal has obtained these segment informations, so comprising bit number, the expansion sub-frame description field that the base station sends by down channel is (6-1)+(2-1)=6, this expansion sub-frame description field is divided into two bit section, wherein bit section 1 comprises 5 bits, describing first comprises number of sub-frames and forms situation greater than the expansion sub-frame of 1 segmentation (being segmentation 1), bit section 2 comprises 1 bit, describes first and comprises number of sub-frames and form situation greater than the expansion sub-frame of 1 segmentation (being segmentation 2).
The 1st bit represents that for ' 1 ' subframe DL1 and DL0 in first segmentation belong to same expansion sub-frame EDL0 in the bit section 1, the 2nd bit in the bit section 1 represents that for ' 0 ' subframe DL2 and DL1 do not belong to same expansion sub-frame, be that subframe DL2 does not belong to expansion sub-frame EDL0, the 3rd bit in the bit section 1 represents that for ' 1 ' subframe DL3 and DL2 belong to same expansion sub-frame EDL1, the 4th bit in the bit section 1 represents that for ' 0 ' subframe DL4 and DL3 do not belong to same expansion sub-frame, be that subframe DL4 does not belong to expansion sub-frame EDL1, the 5th bit in the bit section 1 represents that for ' 0 ' subframe DL5 and DL4 do not belong to same expansion sub-frame, and promptly DL4 and DL5 do not belong to any expansion sub-frame.The 1st bit in the bit section 2 do not belong to same expansion sub-frame for subframe UL1 and the UL0 in second segmentation of ' 0 ' expression, and promptly subframe UL1 and UL0 do not belong to any expansion sub-frame.
Terminal draws subframe DL0, DL1 composition expansion sub-frame EDL0 by analyzing the expansion sub-frame description field, and subframe DL2, DL3 form expansion sub-frame EDL1, and subframe DL4, DL5, UL0, UL1 do not belong to any expansion sub-frame.
From example 1, as can be seen, use 6 bits can describe expansion sub-frame,, reduced expense than prior art (needing to use 8 bits).
Example 2: based on the frame structure of 10ms
As shown in Figure 6, the tdd frame that length is 10ms is made up of 20 subframes, be divided into 8 segmentations, wherein segmentation 1 comprises subframe DL0～DL3 and is used for transmitting downlink data, segmentation 2 comprises subframe UL0 and is used for transmit ascending data, segmentation 3 comprises subframe DL4～DL7 and is used for transmitting downlink data, segmentation 4 comprises subframe UL1～UL3 and is used for transmit ascending data, segmentation 5 comprises subframe DL8 and is used for transmitting downlink data, segmentation 6 comprises subframe UL4 and is used for transmit ascending data, segmentation 7 comprises subframe DL9～DL12 and is used for transmitting downlink data, and segmentation 8 comprises subframe UL5～UL6 and is used for transmit ascending data.Number of sub-frames that five segmentations comprise being arranged greater than 1 in these 8 segmentations, is respectively segmentation 1, segmentation 3, segmentation 4, segmentation 7, segmentation 8.
Suppose that terminal has obtained these segment informations, the expansion sub-frame description field that the base station sends by down channel comprises bit number and is (4-1)+(4-1)+(3-1)+(4-1)+(2-1)=12, this expansion sub-frame description field is divided into five bit section, wherein bit section 1 comprises 3 bits, describing first comprises number of sub-frames and forms situation greater than the expansion sub-frame of 1 segmentation (being segmentation 1), bit section 2 comprises 3 bits, describing the 2nd comprises number of sub-frames and forms situation greater than the expansion sub-frame of 1 segmentation (being segmentation 3), bit section 3 comprises 2 bits, describing the 3rd comprises number of sub-frames and forms situation greater than the expansion sub-frame of 1 segmentation (being segmentation 4), bit section 4 comprises 3 bits, describing the 4th comprises number of sub-frames and forms situation greater than the expansion sub-frame of 1 segmentation (being segmentation 7), bit section 5 comprises a bit, describes the 5th and comprises number of sub-frames and form situation greater than the expansion sub-frame of 1 segmentation (being segmentation 8).The 1st bit represents that for ' 1 ' first comprises number of sub-frames and belongs to same expansion sub-frame EDL0 greater than the subframe DL1 and the DL0 of (being segmentation 1) in 1 the segmentation in the bit section 1, the 2nd bit represents that for ' 0 ' subframe DL2 and DL1 do not belong to same expansion sub-frame in the bit section 1, be that subframe DL2 does not belong to expansion sub-frame EDL0, the 3rd bit represents that for ' 1 ' subframe DL3 and DL2 belong to same expansion sub-frame EDL1 in the bit section 1.The 1st bit do not belong to same expansion sub-frame for ' 0 ' the 2nd of expression comprises number of sub-frames greater than the subframe DL5 and the DL4 of (being segmentation 3) in 1 the segmentation in the bit section 2, the 2nd bit represents that for ' 0 ' subframe DL6 and DL5 do not belong to same expansion sub-frame in the bit section 2, the 3rd bit represents that for ' 0 ' subframe DL7 and DL6 do not belong to same expansion sub-frame in the bit section 2, i.e. DL4, DL5, DL6, DL7 do not belong to any expansion sub-frame in the segmentation 3.First bit belongs to same expansion sub-frame EUL0 for ' 1 ' the 3rd of expression comprises number of sub-frames greater than (being segmentation 3) subframe UL2 and UL1 in 1 the segmentation in the bit section 3, the 2nd bit represents that for ' 0 ' subframe UL3 and UL2 do not belong to same expansion sub-frame in the bit section 3, and promptly subframe UL3 does not belong to any expansion sub-frame.First bit belongs to same expansion sub-frame for ' 1 ' the 4th of expression comprises number of sub-frames greater than (being segmentation 7) subframe DL10 and DL9 in 1 the segmentation in the bit section 4, the 2nd bit represents that for ' 0 ' subframe DL11 and DL10 do not belong to same expansion sub-frame in the bit section 4, the 3rd bit represents that for ' 0 ' subframe DL12 and DL11 do not belong to same expansion sub-frame in the bit section 4, and promptly subframe DL11, DL12 do not belong to any expansion sub-frame.First bit belongs to same expansion sub-frame EUL1 for ' 1 ' the 5th of expression comprises number of sub-frames greater than (being segmentation 8) subframe UL6 and UL5 in 1 the segmentation in the bit section 5.
Terminal draws subframe DL0, DL1 composition expansion sub-frame EDL0 by analyzing the expansion sub-frame description field, subframe DL2, DL3 form expansion sub-frame EDL1, subframe UL1, UL2 form expansion sub-frame EUL0, subframe DL9, DL10 form expansion sub-frame EDL2, subframe UL5, UL6 form expansion sub-frame EUL1, and subframe UL0, DL4, DL5, DL6, DL7, UL3, DL8, UL4, DL11, DL12 do not belong to any expansion sub-frame.
By example 2 as can be seen, only used 12 bits can describe expansion sub-frame,, reduced expense than prior art.
Device embodiment
According to the embodiment of the invention, a kind of expansion sub-frame description device is provided, be used to describe expansion sub-frame.
As shown in Figure 7, expansion sub-frame description device according to the present invention comprises:
Segmentation determination module 702 is used for determining specifically comprising the situation of the category-B segmentation that segmentation comprised of a frame: determine the number T of category-B segmentation, determine the number of sub-frames Seg that i category-B segmentation comprised
i, wherein, category-B is segmented into the number of sub-frames that comprises greater than 1 segmentation, i=1 ..., T;
Bit section generation module 704 is used for generating successively and i i the bit section that the category-B segmentation is corresponding, makes that i the included bit number of bit section is Seg
i-1, wherein, whether belong to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set;
Expansion sub-frame description field generation module 706, continuous T the bit section that is used for bit section generation module 704 is generated is as the expansion sub-frame description field.
Said apparatus embodiment can understand with reference to the method embodiment that provides previously, has omitted being repeated in this description same or similar part here.
As mentioned above, by above-mentioned at least one technical scheme of the present invention, whether belong to same expansion sub-frame by the number of sub frames that comprises in the segmentation according to a frame greater than adjacent two subframes in 1 segmentation and such segmentation and carry out expansion sub-frame description, compare and prior art, can reduce the expense of expansion sub-frame description.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. an expansion sub-frame information sending method is used for the formation that the termination extension subframe is notified in the base station, and subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame, it is characterized in that described expansion sub-frame information sending method comprises:
The base station generates bit number
The expansion sub-frame description field, wherein, T is the bit hop count that described expansion sub-frame description field comprises, Seg
i-1 is i the bit number that bit section is included, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame, and j bit in described i the bit section represent whether j subframe and j+1 subframe in described i the category-B segmentation belong to same expansion sub-frame; Wherein, i=1 ..., T, j=1 ... Seg
i-1, described category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation;
Described base station sends expansion sub-frame description message by down channel to terminal, and carries described expansion sub-frame description field in described expansion sub-frame description message.
2. expansion sub-frame information sending method according to claim 1 is characterized in that, described base station generates bit number and is
The operation of described expansion sub-frame description field be specially:
The situation of category-B segmentation is determined in described base station, specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i
Described base station generates and i i the bit section that the category-B segmentation is corresponding successively, makes that described i the included bit number of bit section is (Seg
i-1), wherein, whether belongs to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set;
Continuous T the bit section that described base station will generate is as described expansion sub-frame description field.
3. expansion sub-frame information sending method according to claim 2 is characterized in that, the described operation that i j bit in the bit section is set is specially:
When j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in described i the bit section was set to 1;
When j subframe in i the category-B segmentation and j+1 subframe did not belong to same expansion sub-frame, j bit in described i the bit section was set to 0.
4. expansion sub-frame information sending method according to claim 1 is characterized in that, further comprises the segmentation description field in the described expansion sub-frame description message, is used to describe the segmentation situation of a frame.
5. expansion sub-frame information analytic method is used for the formation of terminal parses expansion sub-frame, and subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame, it is characterized in that described expansion sub-frame information analytic method comprises:
Terminal receives the expansion sub-frame description message from the base station, wherein, and the expansion sub-frame description field that carries the segmentation description field of the segmentation situation that is used to describe a frame in the described expansion sub-frame description message and be used to describe the formation of expansion sub-frame;
Described terminal reads described segmentation description field, obtains T and Seg
iWherein, T is the bit hop count that the expansion sub-frame description field in the expansion sub-frame description message comprises, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame, described category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation;
Described terminal reads described expansion sub-frame description field, with the length of obtaining is
Bit sequence be divided into T bit section, make that i the included bit number of bit section is (Seg
i-1);
Whether described terminal belongs to same expansion sub-frame according to j subframe and j+1 the subframe in i the category-B segmentation of j bit decision in described i the bit section.
6. expansion sub-frame information analytic method according to claim 5, it is characterized in that described terminal is specially according to the operation whether j subframe in i the category-B segmentation of j bit decision in described i the bit section and j+1 subframe belong to same expansion sub-frame:
When j bit in described i the bit section was 1, j subframe and j+1 subframe in described i the category-B segmentation of described terminal judges belonged to same expansion sub-frame;
When j bit in described i the bit section was 0, j subframe and j+1 subframe in described i the category-B segmentation of described terminal judges did not belong to same expansion sub-frame.
7. an expansion sub-frame information processing method is used for base station and terminal expansion sub-frame information is sent or dissection process, and subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame, it is characterized in that described expansion sub-frame information processing method comprises:
The base station generates bit number
The expansion sub-frame description field, wherein, T is the bit hop count that described expansion sub-frame description field comprises, Seg
i-1 is i the bit number that bit section is included, Seg
iBe i the number of sub-frames that the category-B segmentation is comprised in the frame, and j bit in described i the bit section represent whether j subframe and j+1 subframe in described i the category-B segmentation belong to same expansion sub-frame; Wherein, i=1 ..., T, j=1 ... Seg
i-1, described category-B is segmented into the number of sub-frames that comprises in a plurality of segmentations of a frame greater than 1 segmentation;
Described base station sends expansion sub-frame description message by down channel to terminal, and carries described expansion sub-frame description field in described expansion sub-frame description message;
Described terminal is determined the formation of expansion sub-frame in the frame according to described expansion sub-frame description message.
8. expansion sub-frame information processing method according to claim 7 is characterized in that, described base station generates bit number and is
The operation of described expansion sub-frame description field be specially:
The situation of category-B segmentation is determined in described base station, specifically comprises: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i
Described base station generates and i i the bit section that the category-B segmentation is corresponding successively, makes that described i the included bit number of bit section is (Seg
i-1), wherein, whether belongs to same expansion sub-frame according to j subframe in i the category-B segmentation and j+1 subframe j bit in i the bit section is set;
Continuous T the bit section that described base station will generate is as described expansion sub-frame description field.
9. expansion sub-frame information processing method according to claim 8 is characterized in that, the described operation that i j bit in the bit section is set is specially:
When j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in described i the bit section was set to 1;
When j subframe in i the category-B segmentation and j+1 subframe did not belong to same expansion sub-frame, j bit in described i the bit section was set to 0.
10. expansion sub-frame information processing method according to claim 8 is characterized in that, further comprises the segmentation description field in the described expansion sub-frame description message, is used to describe the segmentation situation of a frame.
11. expansion sub-frame information processing method according to claim 10 is characterized in that, it is characterized in that, described terminal determines that according to described expansion sub-frame description message the operation of the formation of expansion sub-frame in the frame is specially:
Described terminal reads described segmentation description field, obtains T and Seg
i
Described terminal reads described expansion sub-frame description field, with the length of obtaining is
Bit sequence be divided into T bit section, make that i the included bit number of bit section is (Seg
i-1);
Whether described terminal belongs to same expansion sub-frame according to j subframe and j+1 the subframe in i the category-B segmentation of j bit decision in described i the bit section.
12. expansion sub-frame information processing method according to claim 11, it is characterized in that described terminal is specially according to the operation whether j subframe in i the category-B segmentation of j bit decision in described i the bit section and j+1 subframe belong to same expansion sub-frame:
When j bit in described i the bit section was 1, j subframe and j+1 subframe in described i the category-B segmentation of described terminal judges belonged to same expansion sub-frame;
When j bit in described i the bit section was 0, j subframe and j+1 subframe in described i the category-B segmentation of described terminal judges did not belong to same expansion sub-frame.
13., it is characterized in that the 1st bit section in the described T bit section comprises the 1st to according to each described expansion sub-frame information processing method in the claim 7 to 12
Individual bit, m bit section comprises
To
Individual bit, wherein, m=2 ..., T.
14. an expansion sub-frame description method is used to describe expansion sub-frame, subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame, it is characterized in that described expansion sub-frame description method comprises:
Determine the situation of the category-B segmentation that comprised in the segmentation of a frame, specifically comprise: the number T of category-B segmentation, i the number of sub-frames Seg that the category-B segmentation is comprised
i, wherein, described category-B is segmented into the number of sub-frames that comprises greater than 1 segmentation, i=1 ..., T;
Generate and i i the bit section that the category-B segmentation is corresponding successively, make that the included bit number of described i bit section is Seg
i-1, wherein, whether belong to same expansion sub-frame according to j subframe in described i the category-B segmentation and j+1 subframe j bit in described i the bit section is set;
With continuous T bit section generating as the expansion sub-frame description field.
15. expansion sub-frame description method according to claim 14 is characterized in that, the described operation that i j bit in the bit section is set is specially:
When j subframe in i the category-B segmentation and j+1 subframe belonged to same expansion sub-frame, j bit in described i the bit section was set to 1;
J bit when j subframe in i the category-B segmentation and j+1 subframe do not belong to same expansion sub-frame in described i the bit section is set to 0.
16. an expansion sub-frame description device is used to describe expansion sub-frame, subframe adjacent and that transmission direction is identical constitutes a segmentation in the frame, it is characterized in that described expansion sub-frame description device comprises:
The segmentation determination module is used for determining specifically comprising the situation of the category-B segmentation that segmentation comprised of a frame: determine the number T of category-B segmentation, determine the number of sub-frames Seg that i category-B segmentation comprised
i, wherein, described category-B is segmented into the number of sub-frames that comprises greater than 1 segmentation, i=1 ..., T;
The bit section generation module is used for generating successively and i i the bit section that the category-B segmentation is corresponding, makes that the included bit number of described i bit section is Seg
i-1, wherein, whether belong to same expansion sub-frame according to j subframe in described i the category-B segmentation and j+1 subframe j bit in described i the bit section is set;
Expansion sub-frame description field generation module, continuous T the bit section that is used for described bit section generation module is generated is as the expansion sub-frame description field.
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