CN102197619B

CN102197619B - Method for transmitting downlink control messages in cellular system

Info

Publication number: CN102197619B
Application number: CN200980142902.6A
Authority: CN
Inventors: 金首南; 柳麒善; 崔镇洙; 任彬哲; 金丁起
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2008-10-27
Filing date: 2009-10-27
Publication date: 2014-10-29
Anticipated expiration: 2029-10-27
Also published as: KR20100047116A; JP2012507185A; JP2012507184A; CN102197619A; JP5268205B2; KR20100047115A; CN102197608A; JP5268204B2; KR101294813B1; CN102197608B; KR101276854B1

Abstract

A method for transmitting control messages is disclosed. The method includes grouping a plurality of control messages for at least one user equipment based on at least one criteria of whether or not uplink ACK/NACK channel indexes are allowed to be implicitly used in the control messages, whether or not the user equipment corresponding to the control messages is able to implicitly use the uplink ACK/NACK channel indexes, sizes of Information Elements (IEs) of the control messages, whether or not the control messages are segmented into a predetermined number of subblocks, Modulation and Coding Scheme levels applied to the control messages, sizes of allocated IEs of the control messages after applying the MCS levels, and frequency partitions in which the IEs of the control messages are present, and transmitting the grouped control messages. The control messages included in each of the groups generated by grouping are equal in at said least one criteria.

Description

In cellular system, send the method for downlink control messages

Technical field

The present invention relates to a kind of for when reduce the method for complexity of the detection of the control message being received by subscriber equipment when cellular system transmits control message to subscriber equipment or group of user equipments.

Background technology

In cellular system, in order to allow subscriber equipment (UE) to receive data from base station, first UE need to send various informational messages (hereinafter referred to as control message), such as their resource location, Modulation and Coding Scheme and multiple-input and multiple-output (MIMO) scheme at data place.Such control message need to be present in and will from base station, receive each UE of data.Similarly, can consider the method for a plurality of UE are divided into groups and transmitted control message according to group.Now, can change according to the content of information and Modulation and Coding Scheme the size of each control message.

Meanwhile, when base station sends the control message with different sizes to UE, can consider respectively for the positional information of control message and the method for modulation coding information of draft report frame and not report the method for above-mentioned information.

In the previous case, because UE knows position and the modulation coding information of the control message in frame, so control message can easily be detected.Yet, disadvantageously, need further to send additional information.

On the contrary, under latter event, because do not send additional information, thus there is not expense, but each UE need to carry out blind Detecting to confirm its control message.That is, all UE need to be for wherein existing all parts of the frame of control message to carry out blind Detecting.Meanwhile, if the number of situation about need to consider increases,, for confirming complexity and the time increase of control message, therefore, can lose the power of each UE when carrying out blind Detecting.Therefore, need to consider easily to carry out the method for blind Detecting in minimal overhead.

The complexity of blind Detecting depends on that control message is constructed to much or considers to have how many control messages and to change.If all sizes of control message differ from one another, can increase complexity.Therefore, the big or small quantity of control message is generally limited to predetermined value.For example,, if comprise that three sizes altogether of 30 bits, 60 bits and 90 bits are allowed to the size as control message, can reduce complexity.If there are 1CB, 2CB and these three big or small control messages of 3CB (if supposition 1CB=30 bit) in order conveniently big or small base unit to be defined as to controll block (CB), can to exist.

Yet, even when Dang YiCBWei unit arranges control message big or small, the complexity of blind Detecting is also very high.For example, if having the CB of three types and consider four control messages altogether,, in blind Detecting, when the quantity of control message is 1, there are three kinds of situations (1CB, 2CB and 3CB), when the quantity of control message is 2, have 3 ²the situation of kind exists 3 when the quantity of control message is 3 ³the situation of kind, and have 3 when the quantity of control message is 4 ⁴the situation of kind.

If exist altogether 120 kinds of situations and UE not about the information of situation, UE need to carry out the detection of maximum 120 times, if having the control message of UE and have control message being confirmed whether, comprises which information.Conventionally, if the maximum quantity that the quantity of the type of CB is N and control message is M, carrying out the maximum times detecting is sum (N ^m).Because carry out the number of times detecting, make poor system performance, so need to consider to be used for reducing the method for carrying out the number of times detecting.

Meanwhile, channeling is a kind of method of the channel quantity for increasing the per unit area in cellular system.Along with distance increases, intensity of wave dies down gradually.Therefore, the interference between ripple is low at separate preset distance or larger place, therefore, can use identical frequency channels.Use such principle, can use same frequency in each position simultaneously, subscriber's capacity is significantly increased.Effective use of frequency is called as channeling.For the unit of distinguishing, be called as community (mobile communication cells) between position, and switch and be called as switching (handoff) for the frequency channels that keeps conversing between community.In analog mobile cellular telecommunication scheme, need channeling technology.Frequency repeat utilization ratio is a parameter of the frequency efficiency in indication cellular system.By will use the sum of the community (sector) of same frequency to obtain frequency repeat utilization ratio divided by the sum of the community (sector) of whole many cell structures in many cell structures simultaneously.

The frequency repeat utilization ratio of 1G system (for example, Advanced Mobile Phone System (AMPS)) is less than 1.For example, in 7 cell frequency multiplexes, frequency repeat utilization ratio is 1/7.The frequency repeat utilization ratio of 2G system (for example, code division multiple access (CDMA) or time division multiple access (TDMA) system) is better than the frequency repeat utilization ratio of 1G system.For example, be that the frequency repeat utilization ratio of global system for mobile communications (GSM) of the combination of frequency division multiple access (FDMA) system and TDMA can reach 1/4 to 1/3.The frequency repeat utilization ratio of 2GCDMA system and 3G WCDMA system can reach 1, makes to have increased spectrum efficiency, and reduces network topology cost.

When same frequency is used in all communities of all sectors of Dang Yige community and a network, can obtain 1 frequency repeat utilization ratio.Yet, when obtaining 1 frequency repeat utilization ratio in cellular network, from the interference of neighbor cell, reduce the signal receiving performance of UE on the border between Liao community.

In OFDM (OFDMA) system, because take subchannel as unit division channel, so via subchannel transmitted signal, and use all channels unlike in 3G system (CDMA2000 or WCDMA).Use such feature, can improve the throughput of the borderline UE between UEHe community, the central area of community simultaneously.At length, the central area of community approaches base station, and it is safe therefore with respect to the cochannel from neighbor cell, disturbing.Therefore the UE, being positioned on the central area of community can be used all available subchannels.Yet the borderline UE between community only can be used some in all available subchannels.In border between neighbor cell, frequency is assigned to community and uses different subchannels.Such scheme is called as fractional frequency reuse (FFR).

If FFR is applied to cellular system and the quantity of situation about considering increases,, for confirming that complexity and the time of control message increases, therefore lost the electric power of UE when carrying out blind Detecting.Therefore, need to be a kind of for easily carrying out the method for blind Detecting simultaneous minimization expense.

Summary of the invention

[technical problem]

Be designed the problem that solves the object of the invention is to a kind of for easily carrying out from base station the method for the blind Detecting simultaneous minimization expense of the control message sending to subscriber equipment (UE).

[technical scheme]

By providing a kind of, for control message is sent at cellular system to the method for subscriber equipment from base station, realize object of the present invention, whether described method comprises: in base station, based on following at least one standard, a plurality of control messages at least one subscriber equipment are divided into groups: allow impliedly to use up link acknowledgement/non-acknowledgement (ACK/NACK) channel indexes at control message, whether the subscriber equipment corresponding to control message can impliedly use ul ack/NACK channel indexes, the size of the information element of control message (IE), whether control message is divided into the sub-block of predetermined number, be applied to Modulation and Coding Scheme (MCS) level of control message, the size of the IE of the distribution of control message after application MCS level, and the frequency partition that wherein has the IE of control message, and the control message that sends grouping, wherein, in described at least one standard, by included control message in each group in the group of dividing into groups to produce, equate.

Each group in group can comprise in logic continuously or continuous Resource Unit physically.

Can send the information relevant with the quantity of control message included in each group in group or the size of each group in group via the special-purpose control message of non-user.

In each group in group, can be with included control message in each group in the state transmission group of arranging based at least one standard.

Fractional frequency reuse (FFR) can be applied to system, and because many control messages of FFR may reside at least one frequency partition (FP).

For at least one FP, MCS level can be set individually.

For at least one FP, identical MCS level can be set.

Control message can exist only in predetermined FP.

Control message can be arranged at least one FP.

[beneficial effect]

According to the present invention, by be scheduled to regularly arranged and transmit control message and before transmitting control message the information about control message pattern of rows and columns to notification of user equipment in advance, can easily carry out blind Detecting simultaneous minimization expense.Therefore, can reduce for confirming complexity and the time of control message.

Should be understood that, above-mentioned general description of the present invention and detailed description are below exemplary with indicative, and are intended to the of the present invention further explanation that provides claimed.

Accompanying drawing explanation

Be included to provide the accompanying drawing of further understanding of the present invention that embodiments of the invention are shown, and be used from and explain principle of the present invention with specification one.

In the accompanying drawings:

Fig. 1 is the structural map of the transmission resource for transmitting control message.

Fig. 2 is the view that the example that produces control message tectonic information is shown.

Fig. 3 is the view illustrating according to the example of the pattern of control message tectonic information of the present invention.

Fig. 4 illustrates for reducing the view of example of control message tectonic information of effective quantity of the transmission bit of control message tectonic information.

Fig. 5 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.

Fig. 6 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.

Fig. 7 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.

Fig. 8 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.

Fig. 9 to 13 is views that the control message pattern of rows and columns in the situation of applying according to an embodiment of the invention fractional frequency reuse (FFR) is shown.

Figure 14 is the block diagram that the structure of the device that is applicable to base station and subscriber equipment (UE) and can carries out said method is shown.

Embodiment

By combine component parts of the present invention and characteristic according to predetermined format, the following examples are proposed.Each component parts or characteristic should be thought optional factor in the situation that not adding comment.If needed, this independent component parts or characteristic can be not and miscellaneous part or property combination.And, can combine some component parts and/or characteristic and implement embodiments of the invention.Can change the order of disclosed operation in an embodiment of the present invention.Some parts or the characteristic of any embodiment also can be included in other embodiments, or can replace with as required parts or the characteristic of other embodiment.

In the description of accompanying drawing, there is no to describe making unnecessarily fuzzy process or step of scope of the present invention, and do not describe process or the step that those skilled in the art can understand.

The particular term of using is in the following description provided to be convenient to understand the present invention, and in the situation that not departing from technical scope of the present invention, can revise the use of such particular term.

The whole frequency band that base station is used is divided into the subband of predetermined quantity.If use fractional frequency reuse (FFR), can divide in advance whole frequency band by base station, or, can divide whole frequency band in order to facilitate the transmission of control message.Therefore by dividing the quantity of the subband that whole frequency band produces, can be one or more, and size that can subband be set to identical or different.If divided in subband, be used in the resource area that allows subscriber equipment (UE) to receive data, the control message of UE is present in subband.

The complexity of blind Detecting depends on that control message is constructed to much or considers how many control messages and change.If all sizes of control message are all different, can increase complexity.Therefore, the big or small quantity of control message is generally limited to predetermined value.For example,, if comprise that three kinds of sizes altogether of 30 bits, 60 bits and 90 bits are allowed to the size as control message, can reduce complexity significantly.If in order conveniently big or small base unit to be defined as to controll block (CB), can exist and there are 1CB, 2CB and tri-kinds of big or small control messages of 3CB.

, be assigned to after the control message of resource area in collection, control message can be arranged with its big or small descending in base station, and sequentially transmits control message meanwhile.For example, if four control messages have respectively the size of 2CB, 1CB, 3CB and 3CB, with the order of 3CB, 3CB, 2CB and 1CB, arrange control message, to send.

Fig. 1 is the structural map of the transmission resource for transmitting control message.As shown in fig. 1, for convenient, the size of supposing control message is the integral multiple (for example, 1CB, 2CB, 3CB etc.) of controll block (CB), and the size of maximum control message is NCB.Suppose that the resource in the frequency band of dividing with total size of MCB can be assigned to the transmission for control message.

Therefore,, if the size of all message is 1CB, in the frequency band of dividing, can send at most M control message.For the transmission of control message, if combine and send the big or small control message with 1 to NCB, there are various combinations in the frequency band that is assigned with the big or small resource with MCB.On the contrary, if with descending control message, and transmit control message from base station, the limited amount of situation, and its pattern is also limited.

The size that can consider the maximum control message in the frequency band of dividing is the situation of 1CB to NCB.If suppose that the size of maximum control message is n (1≤n≤N) CB, in fact there is the big or small control message with 1 to nCB, and can with descending they to send.In the present invention, when about arranging the information of the pattern of control message while being control message tectonic information, the base station tectonic information that transmitted control message in advance before transmitting control message.Below, by describe according to the first embodiment of the present invention for constructing the method for control message tectonic information.

Now, suppose in the frequency band of all divisions with MCB size and have control message, so that structure control message tectonic information.That is, suppose if the size of all control messages is less than MCB, in remainder, exist each to there is the control message of 1CB size.Fig. 2 is the view that the example that produces control message tectonic information is shown.For example,, if M=12, n=3 and there is the quantity of big or small control message of 3CB and the quantity with the big or small control message of 2CB is all 1, the example of generation tectonic information shown in Figure 2.

Table 1 illustrates the combination of the CB size of constructing control message tectonic information when the size of maximum control message is n.

Table 1

According to value M, change the quantity of the type of the tectonic information matching with the combination shown in table 1.Fig. 3 is the view illustrating according to the example of the pattern of control message tectonic information of the present invention.For convenient, if supposition M=12 and n=3, the pattern shown in Fig. 3 is shown as the combination (this refers to by the control message tectonic information with the big or small control message structure of 1CB, 2CB and 3CB) of (3,2,1).

Combination by (3,2,1) is configured in the tectonic information shown in Fig. 3, and still, 1CB, 2CB and 3CB quantity separately depends on value M.For convenience, in superincumbent combination, the big or small CB that and then size having is greater than the CB with minimal size is defined as time low order CB (a CB of next lower order), and the big or small CB that and then size having is greater than time low order CB is defined as time time low order CB (a CB of a next next lower order).If exist the size having than time large CB of size of time low order CB, define this CB according to above-mentioned rule.

For example, if consider the combination of [3,2,1,1,1,1,1,1,1], numeric representation is the size of CB, and the CB with minimal size is 1CB, and inferior low order CB is 2CB, and and then it be greater than 1CB, and inferior low order CB is 3CB, and and then it be greater than 2CB.

For combine to produce the method for tectonic information by identical CB, the quantity of the CB except having the CB of minimal size is set to 1, fills the CB (for example, [3,2,1 with minimal size in remaining region, 1,1,1,1,1,1]), and the quantity of inferior low order CB (for example, the quantity of 2CB) increase (for example, [3,2,2,1,1,1,1,1], [3,2,2,2,1,1,1], [3,2,2,1]).

For example, after increasing one by one gradually, the quantity (, the quantity of 3CB) of inferior low order CB repeats continuously such processing.

That is, for example, if (, quantity 3CB) is 2 to inferior low order CB, obtains [3,3,2,1,1,1,1],, if the quantity of inferior low order CB (2CB) little by little increases, obtain [3,3,2,2,1,1], and, if the quantity of inferior low order CB is 3, obtain [3,3,3,2,1].If carry out such processing, can according to value M, not obtain specific CB combination.

If assumed value M is 16, may not obtain CB combination (3).If the quantity of 3CB is 5, must in remaining region, fills 1CB, and therefore, can not obtain CB combination (3).On the contrary, can obtain CB combination (3,1).Therefore,, if the size of the maximum control message in above-mentioned control message is n, can get rid of according to value M some CB combinations of this tectonic information of structure.

By said method, according to the various patterns of value N and M structure, be used as tectonic information.

If suppose that 5 control messages have respectively the size of 3CB, 1CB, 2CB, 1CB and 3CB, its descending is [3,3,2,1,1].Control message is sequentially arranged with this in base station, to transmit control message.Now, if the pattern information of [3,3,2,1,1,1,1] is indicated as tectonic information, UE be take 3CB, 3CB, 2CB, 1CB, 1CB, 1CB and the 1CB control message of decoding that is unit sequence, and checks whether its control message exists.Because UE knows base station and with which kind of form transmits control message, so reduced according to the complexity of the size decoding of control message.In addition, because to have the probability of large big or small control message high because Modulation and Coding Scheme causes producing, so even also can be by reducing complexity with said method during demodulation code.

embodiment 1

If supposition, by distributing the size of 16CB altogether and control message to be allowed to reach 1CB to 3CB for control message in dividing the subband that whole frequency band produces, is constructed 30 tectonic informations as shown in table 2ly.The index information by 5 bits form is altogether notified to UE in base station.

Table 2

Index	Pattern	CB combination
			1	[1，1，1，1，1，1，1，1，1，1，1，1，1，1，1，1]	(1)
2	[2，1，1，1，1，1，1，1，1，1，1，1，1，1，1]	(2，1)
			3	[2，2，1，1，1，1，1，1，1，1，1，1，1，1]	(2，1)
4	[2，2，2，1，1，1，1，1，1，1，1，1，1]	(2，1)
			5	[2，2，2，2，1，1，1，1，1，1，1，1]	(2，1)
6	[2，2，2，2，2，1，1，1，1，1，1]	(2，1)
			7	[2，2，2，2，2，2，1，1，1，1]	(2，1)
8	[2，2，2，2，2，2，2，1，1]	(2，1)
			9	[2，2，2，2，2，2，2，2]	(2)
10	[3，1，1，1，1，1，1，1，1，1，1，1，1，1]	(3，1)
			11	[3，2，1，1，1，1，1，1，1，1，1，1，1]	(3，2，1)

12	[3，2，2，1，1，1，1，1，1，1，1，1]	(3，2，1)
			13	[3，2，2，2，1，1，1，1，1，1，1]	(3，2，1)
14	[3，2，2，2，2，1，1，1，1，1]	(3，2，1)
			15	[3，2，2，2，2，2，1，1，1]	(3，2，1)
16	[3，2，2，2，2，2，2，1]	(3，2，1)
			17	[3，3，1，1，1，1，1，1，1，1，1，1]	(3，1)
18	[3，3，2，1，1，1，1，1，1，1，1]	(3，2，1)
			19	[3，3，2，2，1，1，1，1，1，1]	(3，2，1)
20	[3，3，2，2，2，1，1，1，1]	(3，2，1)
			21	[3，3，2，2，2，2，1，1]	(3，2，1)
22	[3，3，2，2，2，2，2]	(3，2)
			23	[3，3，3，1，1，1，1，1，1，1]	(3，1)
24	[3，3，3，2，1，1，1，1，1]	(3，2，1)
			25	[3，3，3，2，2，1，1，1]	(3，2，1)
26	[3，3，3，2，2，2，1]	(3，2，1)
			27	[3，3，3，3，1，1，1，1]	(3，1)
28	[3，3，3，3，2，1，1]	(3，2，1)
			29	[3，3，3，3，2，2]	(3，2)
30	[3，3，3，3，3，1]	(3，1)

In system, can limit the maximum quantity of the control message that can once send.For this reason, can the pattern of maximum quantity is separated with the pattern of table 1, so that reconfiguration mode, and can remove identical pattern so that reconstruct tectonic information.

For example, if the maximum quantity of control message is limited to 6 in embodiment 1, can come acquisition model and index by the result of reconstruct table 2.If the maximum quantity that table 3 illustrates control message with the form of form is limited to 6, the control message tectonic information that the result by reconstruct table 2 obtains.That is, from the left side of the pattern of the control message of table 2, sequentially select 6 control messages with reconfiguration mode, and by new indexes applications the pattern to reconstruct.

Table 3

As shown in table 3, because if being limited to 6, the maximum quantity of control message there is the pattern repeating, so the sum of index can be reduced to 26 from 30.

Pattern shown in can partially combined table 3, to reduce the effective quantity that sends bit.For example, pattern [3,3,3,2,2,2,1] and pattern [3,3,3,2,2,1,1,1] can be replaced with to pattern [3,3,3,2,2, b, 1].That is, pattern [3,3,3,2, 2, 2,1] underscore part and pattern [3,3,3,2,2, 1,1,1] underscore part can be replaced by b, to represent [3,3,3,2,2, b, 1].

Fig. 4 illustrates for reducing the view of example of control message tectonic information of effective quantity of the transmission bit of control message tectonic information.As shown in Figure 4, because b has the size of 1CB or 2CB, so trouble, UE need to decode and have this big or small part of 2CB and 1CB, but when execution is used for using this principle to combine the operation of whole pattern, the sum of index reduces.

By expanding this principle, the specific part of whole pattern can be replaced with to " b ".For example, pattern [3,3,3,2,2,2,1] and pattern [3,3,3,2,2,1,1,1] can be replaced with to pattern [3,3,3,2, b, 1].That is, can by pattern [3,3,3,2, 2,2,1] and pattern [3,3,3,2, 2,1, 1,1] underscore partly replaces with " b ", to represent [3,3,3,2, b, 1].Now, in order to confirm part " b ", need to use " 2,2 ", " 2,1,1 " and " 1,1,1,1 " to carry out three decodings.Therefore, pattern [3,3,3,2,1,1,1,1,1] can be thought of as mutually on the same group.Can reduce by following manner the sum of index: permission system pre-determines for the part being represented by " b " to consider how many CB, or allow base station for the part being represented by " b ", to consider how many CB to UE notice.

In the use of tectonic information of using this principles of construction, can with for before transmitting control message to the quantity of UE notice control message and carry out the method for indexing according to the tectonic information of reconstruct.

Although up to the present having described whole frequency band division is a plurality of subbands and situation about transmitting control message via the subband distributing, and can be not limited to construct control message according to subband.That is,, even when in fact frequency band being divided in a plurality of subband for FFR, also can independently transmit control message with subband.Now, can consider that power strengthens (power boosting) for the high reliability transmission of control message, and be applicable to for FFR.The principle that produces tectonic information is identical with description above, except considering the sizes values M of subband and the quantity of control message about whole frequency band.

Meanwhile, except control message tectonic information, may need additional information below.

If indication supposition is K subband by whole frequency band division, whether in the subband of each division, there is the information of control message:

For example, can send this content with bitmap format.If be three subbands by whole frequency band division, can use such as { b1, b2, the bitmap being formed by 3 bits of b3}.Now, bit b1, b2 and b3 sequentially represent three subbands.If there is control message in the subband corresponding with it, each bit of bitmap has value " 1 ", if there is not control message in the subband corresponding with it, each bit of bitmap has value " 0 ".For example, if only there is control message in the first subband, obtain { b1, b2, b3}={1,0,0}.

Band information

The sum of control message

The maximum quantity of the control message that can allow in subband (value M)

The maximum quantity of control message

The quantity of the control message in each subband

This content is applicable to the transmission of the unicast services control channel (USCCH) of IEEE802.16m standard.USCCH is divided into user's dedicated control information (USCI) and non-user's dedicated control information (NUSCI).Now, when sending USCI, USCI individually encodes.If there is no information when sending USCI, UE need to carry out blind Detecting.In this case, base station need to be used NUSCI or broadcast channel (BCH) to send above-mentioned tectonic information.Base station is with big or small descending USCI, and transmission USCI.

Although in the present invention with descending tectonic information, the present invention can be applicable to ascending order array structure information.

Below, by describe according to a second embodiment of the present invention for constructing the method for control message.

In having the big or small frequency band of MCB, there are the various situations of the big or small control message with 1CB to NCB in existence.Yet control message is arranged with descending in base station, and transmit control message.Therefore, in this case, limit the quantity of situation, and also limited its pattern.Therefore, proposed a kind of for arranging control message with descending and producing the method for group according to its size.For example, after modulation and/or coding-control message, the big or small control message with 1CB is grouped into group 1, and the control message with 2CB is grouped into group 2.Therefore, the quantity of group equals the quantity of the big or small type of control message.All control messages and size be set to M or less in consider the quantity of all possible group.

embodiment 2

Table 4 below illustrate when the value M of supposition system be 5 and the example of 1CB, 2CB and the 4CB configurations information while being allowed to as control message big or small.In table 4, group 1 is the group with the big or small control message of 1CB, and group 2 is the groups with the big or small control message of 2CB, and group 3 is the groups with the big or small control message of 4CB.

Table 4

Index	Group 1 (1CB)	Group 2 (2CB)	Group 3 (4CB)
				0	0	0	0
1	1	0	0
				2	2	0	0
3	3	0	0
				4	4	0	0
5	5	0	0
				6	0	1	0
7	1	1	0
				8	2	1	0
9	3	1	0
				10	0	2	0
11	1	2	0
				12	0	0	1
13	1	0	1

From table 4, can find out, total size with all control messages of particular index is equal to or less than M (being 5 in the present embodiment).With in the above example, sequentially connection group 1 to group 3, make with ascending order or its value of descending.Can consider additive method, for example, for the order (ascending order or descending) of the total size with all control messages etc., carry out the method for arrangement.

embodiment 3

Table 5 below illustrates use table 4 according to the structure of control message pattern of rows and columns of total large minispread of all control messages.In table 5, group 1 is the group with the big or small control message of 1CB, and group 2 is the groups with the big or small control message of 2CB, and group 3 is the groups with the big or small control message of 4CB.In addition, in table 5, by G1, G2 and G3, represent to organize 1 to group 3 respectively.Value representation in every group of bracket belongs to the quantity of the control message of this group.

Table 5

All 13 types (index 1 to 13) at embodiment shown in table 51.Therefore, total size of control message and the value of index 2 by reference to table 5 sequentially produces the index that represents control message structure.

embodiment 4

According to another embodiment of the invention, in order to reduce the effective quantity of bit of the index of transmission, when total size of all control messages is fixed to M, can consider all possible combination of every group except particular group n.In blind decoding, can comprise the control message corresponding with got rid of group n.For example, if n=1 and M=5, UE can carry out blind decoding for the control message comprising in group 1 (the big or small group with 1CB).Table 6 below illustrates except organizing the structure of the control message pattern of rows and columns 1.

Table 6

Index	Group 1 (1CB)	Group 2 (2CB)	Group 3 (4CB)
				0	0-5	0	0
1	0-3	1	0
				2	0 or 1	2	0
3	0 or 1	0	1

That is, in table 6, if index is 1, the quantity with the big or small control message of 2CB is 1, and the quantity with the big or small control message of 4CB is 0, and the quantity with the big or small control message of 1CB is any one in 0 to 3.If supposition base station is arranged control message and transmits control message with big or small order, first separate code character 3 and group 2, and Yi1CBWei unit carrys out the remaining control message of blind decoding, until total size (M) of control message.

Meanwhile, in order to reduce the complexity of the blind decoding of Yi1CBWei unit, the information below base station can further send together with index.

The quantity of group 1 control message comprising or total size of group 1

Total size (for example, CB or Resource Unit (RU) size) of the sum of every group of control message comprising and the frequency band being taken by working control message (group 1 to 3)

In the use of the tectonic information of the principles of construction by such, by in advance to UE notice when the sum of the control message of front construction or it is big or small, for first for example, then carried out the method for indexing to the size (, the quantity of CB or the quantity of RU) of the UE notice quantity of control message or the resource of use before transmitting control message, can save the work that UE carries out other blind Detecting.

Meanwhile, can change the sum of control message or it is big or small according to the situation of system.The increase of quantity that for example, can maybe will send to the control message of the UE in system according to the bandwidth of system changes value M.Because said method is considered the sum of the situation when change value M, so for the different value (M of M ₁< M ₂), consider M ₁the quantity of all situations be to consider M ₂the subset of quantity of all situations.Therefore, can consider the table of the maximum M for preparing to allow about system and carry out reconstruct and make the method for index of reference according to the variation of value M.

For example, although in embodiment 2, if M=5 and as shown in table 4 carry out all values (total size of control message is 1CB to 5CB) that structure makes use table, but M on duty changes at 4 o'clock, can consider that total size of the control message of 1CB to 4CB is carried out reconstruct index.

Meanwhile, can carry out blind decoding to particular group, to reduce the effective quantity of the bit of index.If as in Example 3 to thering is the group of n=1, organize 1 (the big or small group with 1CB) and carry out blind decoding, obtain table 7 below.

Table 7

For example, if the value M of system request is sent to all UE (, using BCH), make index of reference 2, this index 2 is control message structures corresponding with value M.

As the another kind of method of using table 6, if the sum of the control message of constructing in present frame is N (0≤N≤M), use value N rather than value M find out the frequency band corresponding with it in table 6, and use the index corresponding with it 2 to notify tectonic information.Table 8 below illustrates the tectonic information of constructing when the sum of the control message of constructing in present frame is N.

Table 8

That is, if value N be 5 and index 2 be 1, tectonic information is G1 (0-3), G2 (1), G3 (0), and if value N be 3 and index 2 be 1, tectonic information is G1 (0-1), G2 (1) and G3 (0).Now, N on duty is that 5 o'clock needs 2 bits represent index 2, but N on duty only needs 1 bit to represent index 2 at 3 o'clock.That is, because use table 8 to be automatically identified for representing the effective quantity of the bit of index 2 by settings M, so reduced the quantity that represents the needed bit of tectonic information.

Can produce table 7 from table 5.

Because carry out blind decoding to organizing 1, so the frequency band of the group 1 in change and application table 5.Therefore, when resembling in embodiment 2, system considers that the quantity of all situations carries out while sending, and while particular group being carried out to blind decoding when resembling in embodiment 3, can use identical table.

When consider likely during the quantity of situation and when some groups are carried out to blind decoding, system can be used BCH or non-user's dedicated control information (NUSCI) to notify the feature of this tectonic information to all UE.In this case, can effectively use the structure shown in table 4 or table 6.

In all said methods, if there is no control message, can omit the index corresponding with it.For example,, in embodiment 1 to 3, when the quantity of control message is 0 in group 1 to 3, if the known sum at every group of control message comprising does not need the index corresponding with it.

The present invention is applicable to the transmission of the USCCH of IEEE802.16m standard.USCCH is divided into USCI and NUSCI.Now, when sending USCI, USCI encodes separately.If there is not information when sending USCI, UE need to carry out blind Detecting.In this case, base station need to send above-mentioned tectonic information with NUSCI or BCH.USCI is arranged with big or small descending in base station, and sends USCI.

Although the tectonic information of describing in the present invention with descending, the present invention is also applicable to the tectonic information of arranging with ascending order.

embodiment 5

Can in fact according to the structure of system, change value M.Table 9 below illustrates according to the index of the various value M that can construct in system.G1, G2, G3, G4 and G5 represent that the size of control message is respectively the situation of 1CB, 2CB, 4CB, 8CB and 16CB.Can omission group 1, because UE starts to carry out blind Detecting to MCB from completing the group time point of 2 o'clock.

Table 9

In table 9, at index 0, by G1 (0-M), represent to organize 1.If send individually the quantity (or total size of control message) of the control message of current transmission, can be illustrated in by G1 (1-M) G1 (0-M) of the group 1 of index 0 indication.This is because if the quantity of control message (total size of control message) is 0, the control message that will not send.As structure table, can not revise to use by table 7 being changed to the structure that table 8 obtains in embodiment 4 and show.That is, can consideration value N rather than value M, the sum of the control message based on when front construction produces index.

Except using big or small method, for being set, the example of the method for group also comprises the whole bag of tricks below.

In fact downlink control messages is modulated and is encoded to send.Now, for application of modulation encoding scheme (MCS), downlink control messages can be divided into a plurality of sub-blocks.For convenient, downlink control messages is called to downlink control messages information element (IE), the sub-block of division is called the IE of expansion, and the control signal in fact sending after application MCS is called the IE of distribution.In addition, the basic magnitude unit of the IE of distribution is called as minimum A-MAP logical resource unit (MLRU).In the state dividing into groups according to specific purpose, transmit control message, and send the adequate information about grouping.For example, the example of downlink control messages IE can comprise the basic basic assignment IE of assignment IE, UL, the DL/UL group of downlink/uplink (DL/UL) resource distribution IE and the permanent IE of DL/UL.

Can consider that situation is below as the example of group technology.

In the first situation, carry out grouping and make control message be divided into control message and other control message for allowing ULACK/NACK channel indexes impliedly to be used.The group 2 that for example, control message can be grouped into the group 1 that formed by the basic assignment IE of DL and be formed by the IE of other types.

In the second situation, carry out control message and other control message that grouping makes control message be divided into the subscriber equipment that can impliedly use UL ACK/NACK channel indexes.The group 2 that for example, control message can be grouped into the group 1 that formed by the basic assignment IE of DL/UL and be formed by the IE of other types.Now, can send continuously the control message IE of a subscriber equipment.

In first and second kinds of situations, impliedly use the example of the method for ACK/NACK channel indexes to comprise and use the order of control message as the method for ACK/NACK channel indexes.That is,, if use such group technology, do not need the supplementary signal for ACK/NACK channel indexes.

In the third situation, according to the size of control message IE, carry out grouping.For example, control message can be grouped into the group 1 being formed by the big or small control message with 56 bits and the group 2 being formed by the big or small control message with 90 bits.

In the 4th kind of situation, according to the IE of expansion and the IE of non-expansion, carry out grouping.That is the group 2 that, control message can be grouped into the group 1 that formed by the IE expanding and for example, be formed by the IE (, basic I E) of other types.The IE of expansion refers to the sub-block producing by following manner: if the amount of the information of original control message surpasses the length of the basic controlling message of system permission as above, original control message is divided into a plurality of parts.Now, can send continuously the expansion IE that is divided into a plurality of sub-blocks.

In the 5th kind of situation, according to MCS level, carry out grouping.For example, control message can be grouped into the group 1 being formed by the control message with the MCS level of Quadrature Phase Shift Keying (QPSK) 1/2 and the group 2 being formed by the control message with the MCS level of QPSK 1/8.

In the 6th kind of situation, according to the size of the IE distributing, carry out grouping.For example, control message can be grouped into the group 1 being formed by 2MLRU and the group 2 being formed by 4MLRU.The IE distributing refers to as mentioned above to the IE that distributes to real resource region after control message application MCS.

In the 7th kind of situation, use the combination of the group technology in six kinds of situations of the first situation to the.

For example, according to after the third situation grouping control message, can apply the 5th kind of situation to the group producing by grouping.For example, control message can be grouped into: the group 1 being formed by the control message with the size of 56 bits and the MCS level of QPSK 1/2; The group 2 being formed by the control message with the size of 56 bits and the MCS level of QPSK 1/8; The group 3 being formed by the control message with the size of 90 bits and the MCS level of QPSK 1/2; And, the group 4 being formed by the control message with the size of 90 bits and the MCS level of QPSK 1/8.

Can according to circumstances change the quantity of group, and can carry out change method according to its object.

embodiment 6

Can carry out group technology according to MCS level rather than size.That is, can carry out blind Detecting by following manner: according to the MCS level of control message, carry out grouping, and to UE, notify the quantity of the control message in every group.

For example, if use QPSK 1/16 (MCS4), QPSK 1/8 (MCS3), QPSK1/4 (MCS2) and QPSK 1/2 (MCS1) to come modulating/demodulating and coding-control message, represent to exist the said method of the tectonic information of how many control messages to produce and send index in each MCS level by use.

Simultaneously, in the situation that base station sends tectonic information according to the size of tectonic information, can easily carry out blind Detecting by following manner: according to the MCS level in each of the group dividing according to size, carry out array structure information (to carry out array structure information from MCS1 to MCS4 or from the order of MCS4 to MCS1), and send tectonic information.On the contrary, in the situation that constructing group according to MCS level, can easily carry out blind Detecting by following manner: in every group, according to its size, carry out array structure information (with descending or ascending order), and send tectonic information.

Meanwhile, in the transmission of every group, can directly with signal, send the quantity of the control message in each actual sets.

Can consider the example of above-mentioned control message, senior MAP (A-MAP) information element (IE) of IEEE802.16m system.If carry out grouping according to the size of distributing to the A-MAP resource allocation unit (hereinafter referred to as A-MAPIE allocation units) of actual A-MAP channel after tone coded to A-MAP IE application of modulation/separate, the size of the A-MAP IE allocation units that exist in every group can be set to equate.Fig. 5 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.As shown in Figure 5, after application of modulation/separate is tone coded, according to the size of A-MAPIE allocation units and the A-MAP IE allocation units with formed objects, arrange A-MAP IE allocation units, so that formation group.

After tone coded to A-MAP IE application of modulation/separate, can distribute to according to its large minispread the A-MAP IE allocation units of actual A-MAP channel, and can arrange A-MAP IE allocation units according to its MCS level in thering are the A-MAPIE allocation units of formed objects.

Fig. 6 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.As shown in Figure 6, can divide into groups to have the A-MAP IE allocation units of identical MCS level and formed objects.If existed, having the big or small A-MAP IE of 1MLRU and 2MLRU and carry out the modulating/demodulating coding such as QPSK 1/2 and QPSK 1/4 (can differently apply the type of MCS) for A-MAP IE, is 1MLRU, 2MLRU and 4MLRU to the size of distributing to the A-MAP IE allocation units of actual A-MAP channel.MLRU is the unit-sized of A-MAP IE.Now, the A-MAP IE obtaining for the A-MAP IE execution modulating/demodulating coding with 1MLRU by use QPSK 1/2 is as the big or small A-MAP IE allocation units with 1MLRU, by using QPSK 1/2 to carry out A-MAP IE that modulating/demodulating coding obtains and encode the A-MAP IE that obtains as the big or small A-MAP IE allocation units with 2MLRU by using QPSK 1/4 to carry out modulating/demodulating for the A-MAP IE with 1MLRU for the A-MAP IE with 2MLRU, and, the A-MAP IE obtaining for the A-MAP IE execution modulating/demodulating coding with 2MLRU by use QPSK 1/4 is as the big or small A-MAP IE allocation units with 4MLRU.Therefore, there are 4 groups altogether, and can send the index information being limited by the size (or quantity of A-MAP IE allocation units) of every group or AD HOC, to easily carry out blind Detecting.Can send information above via the special-purpose A-MAP of non-user.

Meanwhile, if according to its MCS level A-MAP IE allocation units that divide into groups, the size of the A-MAP IE allocation units that exist in group may be different, and still, the MCS level of the A-MAP IE allocation units that exist in can group is set to equate.Fig. 7 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.In Fig. 7, after tone coded to A-MAP IE application of modulation/separate, according to its MCS level A-MAP IE allocation units that divide into groups.

After tone coded to A-MAP IE application of modulation/separate, can arrange the A-MAP IE allocation units of distributing to actual A-MAP channel according to MCS level, and can arrange the A-MAP IE allocation units of distributing to actual A-MAP channel according to its size in thering are the A-MAP IE allocation units of identical MCS level.Fig. 8 illustrates the view of control message pattern of rows and columns according to an embodiment of the invention.As shown in Figure 8, can divide into groups to have the A-MAP IE allocation units of identical MCS level and formed objects.If supposition exists, have the big or small A-MAP IE of 1MLRU and 2MLRU and to use QPSK 1/2 and QPSK 1/4 (can differently apply the type of MCS) carries out modulating/demodulating for A-MAP IE, the size of distributing to the A-MAPIE allocation units of actual A-MAP channel is 1MLRU, 2MLRU and 4MLRU.Now, the A-MAPIE obtaining for the A-MAP IE execution modulating/demodulating coding with 1MLRU by use QPSK1/2 is as the big or small A-MAP IE allocation units with 1MLRU, by using QPSK 1/2 to carry out A-MAP IE that modulating/demodulating coding obtains and encode the A-MAP IE that obtains as the big or small A-MAP IE allocation units with 2MLRU by using QPSK 1/4 to carry out modulating/demodulating for the A-MAP IE with 1MLRU for the A-MAP IE with 2MLRU, and, the A-MAPIE obtaining by the A-MAP IE execution modulating/demodulating coding for having 2MLRU is as the big or small A-MAP IE allocation units with 4MLRU.Therefore, there are 4 groups altogether, and send the index information being limited by the size (or quantity of A-MAP IE allocation units) of every group or AD HOC, to easily carry out blind Detecting.Can send information above via the special-purpose A-MAP of non-user.

The method that can consider to broadcast such information for all UE in community is as for notifying the method for such information to UE.

In IEEE802.16m system, can use the special-purpose A-MAP of non-user or superframe head (SFH) to send information above.

Now, in the special-purpose A-MAP of non-user, if the multifrequency subregion of application such as FFR can one by one be considered following situation: the situation that has the special-purpose A-MAP of non-user in each subregion; The situation that represents the A-MAP tectonic information of particular zones by distributing to the special-purpose A-MAP of non-user of another subregion; And, in multiplexing subregion, there is the situation of the special-purpose A-MAP of non-user.When there is the special-purpose A-MAP of non-user in each subregion, by this subregion, sent the A-MAP tectonic information of the subregion being proposed by the present invention.

The in the situation that of there is not the special-purpose A-MAP of non-user in all subregions, can indicate by distributing to the special-purpose A-MAP of non-user of another subregion the A-MAP tectonic information of particular zones.For example, if apply multiplexing 1 subregion and multiplexing 3 subregions simultaneously, can consider only by multiplexing N subregion or multiplexing 1 subregion strengthening at power, to send the special-purpose A-MAP of non-user.Now, can apply for send the method for the A-MAP tectonic information (using the index information of above-mentioned index production method, the quantity of the size of every group or A-MAP IE allocation units) of each subregion to the special-purpose A-MAP of non-user.In addition, if the specific multiplexing N subregion strengthening by power or multiplexing 1 subregion send the special-purpose A-MAP of non-user, can indicate the A-MAP information corresponding with this subregion by special-purpose A-MAP by the non-user of this subregion.

Total size of A-MAP IE allocation units that can be by each subregion is carried out definitions section.; if configure 4 subregions altogether by application multi partition; there are four groups; and can come to UE notice index information with above-mentioned index production method, or use the special-purpose A-MAP of non-user or SFH to user notification the size (or quantity of A-MAP IE allocation units) according to every group of subregion.

Subregion sends the A-MAP tectonic information of the subregion being proposed by the present invention when there is the special-purpose A-MAP of non-user in each subregion.

Below, by describe as application such as FFR in system multifrequency subregion (FP) time non-user's special use A-MAP structure and for sending the method for tectonic information.

Can determine the quantity of admissible FP because of the very same reason of FFR according to method of operation.For example, if FFR 1/3 (that is, the frequency repeat utilization ratio relevant to FFR is 1/3) is used as FFR scheme, the quantity of FP is 3, and if application FFR 1/3 and FFR 1, the quantity of FP is 4.

The characteristic (for example, power strengthens) of considering FP, can limit and use specific MCS level according to FP.For example, QPSK 1/2 is applied to the FP that power strengthens, and QPSK 1/2 and/or QPSK 1/8 are applied to FFR 1 subregion, and QPSK 1/8 is applied under powered FP.

Meanwhile, control message may reside in all FP or exists only in predetermined FP.If control message exists only in predetermined FP, for example, in FFR 1/3, control message can exist only in the FP of power enhancing, and in FFR 1/3 and FFR 1, control message can exist only in the FP of power enhancing and/or the FP of FFR 1.

In addition, if control message is divided into groups and send, the group technology being proposed by the present invention can be applied to the FP that wherein has control message.

Below, description has been applied to the example of dividing into groups and transmitting control message in the system of FFR.

In the first example, suppose aspect assignment (A)-A-MAP IE big or small and have A type and Type B, the quantity of FP is 1 (application FFR 1), and QPSK 1/2 and QPSK 1/8 are used as available MCS.QPSK 1/2 and QPSK 1/8 are applied to A type, thereby produce 1MLRU allocation units and 4MLRU allocation units, and QPSK 1/2 and QPSK 1/8 be applied to Type B, thereby produce 2MLRU allocation units and 8MLRU allocation units.Therefore,, after application MCS, 1MLRU, 2MLRU, 4MLRU and 8MLRU are as A-MAP IE allocation units.The 1MLRU producing can be set to group 1,2MLRU can be set to group 2, and 4MLRU can be set to group 3, and 8MLRU can be set to group 4.Now, can determine according to the size of the resource area of distributing for A-A-MAP the maximum quantity of the A-A-MAP IE that can send.Fig. 9 is the view that the control message pattern of rows and columns in the situation of having applied according to an embodiment of the invention FFR is shown.As shown in Figure 9, the MLRU of generation can be by the resource mapping with identical IE size and identical MCS level to the group being comprised of continuous in logic MLRU.

In the second example, suppose aspect A-A-MAP IE big or small and have A type and Type B, and the quantity of FP is 3 (application FFR 1/3).In addition, in the subregion only strengthening at power, have A-A-MAP, and the MCS using is limited to QPSK 1/2.Because QPSK 1/2 is applied to A type and Type B, thereby produce 1MLRU allocation units and 2MLRU allocation units, so after application MCS, 1MLRU and 2MLRU are as A-A-MAP IE allocation units.The 1MLRU producing is set to organize 1, and 2MLRU is set to organize 2.Figure 10 is the view that the control message pattern of rows and columns in the situation of having applied according to an embodiment of the invention FFR is shown.As shown in Figure 10, can be by the resource mapping with identical IE size and identical MCS level to the group being formed by continuous in logic MLRU.

In the 3rd example, suppose aspect A-A-MAP IE big or small and have A type and Type B, and the quantity of FP is 4 (application FFR 1/3 and FFR 1).The characteristic (for example, power strengthens) of considering FP, limits and uses specific MCS level according to FP.For example, QPSK 1/2 is applied to the subregion that FFR 1/3 power strengthens, and QPSK 1/8 is applied to FFR 1 subregion, as available MCS.In the subregion strengthening at FFR 1/3 power, QPSK 1/2 is applied to A type and Type B, thereby produces 1MLRU allocation units and 2MLRU allocation units, and in FFR 1 subregion, QPSK 1/8 is applied to A type and Type B, thereby produces 4MLRU allocation units and 8MLRU allocation units.Therefore, in this case, after application MCS, 1MLRU, 2MLRU, 4MLRU and 8MLRU are as A-A-MAP IE allocation units.The 1MLRU producing can be set to group 1,2MLRU and be set to group 2,4MLRU and can be set to group 3, and 8MLRU can be set to group 4.Figure 11 is the view that the control message pattern of rows and columns in the situation of having applied according to an embodiment of the invention FFR is shown.As shown in Figure 10, can be by the resource mapping with identical IE size and identical MCS level to the group being formed by continuous in logic MLRU.

In the 4th example, suppose aspect A-A-MAP IE big or small and have A type and Type B, and the quantity of FP is 4 (application FFR 1/3 and FFR 1).The characteristic (for example, power strengthens) of considering FP, limits and uses specific MCS level according to FP.For example, QPSK 1/2 is applied to the subregion that FFR 1/3 power strengthens, and QPSK 1/2 and QPSK 1/8 be applied to FFR1 subregion, as available MCS.In the subregion strengthening at FFR 1/3 power, QPSK 1/2 is applied to A type and Type B, thereby produce 1MLRU allocation units and 2MLRU allocation units, in FFR 1 subregion, QPSK 1/2 is applied to A type and Type B, thereby produce 1MLRU allocation units and 2MLRU allocation units, and QPSK 1/8 is applied to A type and Type B, thereby produces 4MLRU allocation units and 8MLRU allocation units.

In this case, after application MCS, 1MLRU, 2MLRU, 4MLRU and 8MLRU are as A-A-MAP IE allocation units.The 1MLRU allocation units of the subregion that FFR 1/3 power strengthens can be set to group 1, the 1MLRU allocation units that 2MLRU is set to group 2, FFR 1 subregion can be set to group 3,2MLRU and can be set to group 4,4MLRU can be set to group 5, and 8MLRU can be set to group 6.Figure 12 is the view that the control message pattern of rows and columns in the situation of having applied according to an embodiment of the invention FFR is shown.As shown in Figure 12, the MLRU of generation can be by the resource mapping with identical IE size and identical MCS level to the group being comprised of continuous in logic MLRU.Now, if resource has identical MCS level and identical IE size is still present in different FP, can be by resource mapping to different groups.

In the 5th example, suppose aspect A-A-MAP IE big or small and have A type and Type B, and the quantity of FP is 4 (application FFR 1/3 and FFR 1).Restriction and use identical MCS level in all FP, and Modulating Power level as required, to keep link performance.For example, QPSK 1/2 can be used as available MCS.In the subregion strengthening at FFR 1/3 power, QPSK 1/2 is applied to A type and Type B, thereby produces 1MLRU allocation units and 2MLRU allocation units, and, in FFR 1 subregion, QPSK 1/2 is applied to A type and Type B, thereby produces 1MLRU allocation units and 2MLRU allocation units.

Now, if A-A-MAP has identical MCS level and identical IE size is still present in different FP, A-A-MAP can be grouped into different groups.Therefore, the 1MLRU allocation units of the subregion that FFR 1/3 power can be strengthened are set to group 1, and the 1MLRU allocation units that 2MLRU can be set to group 2, FFR 1 subregion can be set to organize 3, and 2MLRU can be set to organize 4.Figure 13 is the view that the control message pattern of rows and columns in the situation of having applied according to an embodiment of the invention FFR is shown.As shown in Figure 13, the MLRU of generation can be by the resource mapping with identical IE size and identical MCS level to the group being comprised of continuous in logic MLRU.Now, if resource has identical MCS level and identical IE size is still present in different FP, can be by resource mapping to different groups.

That is,, if as mentioned above because FFR makes to exist a plurality of FP, as the example of group technology, can exist therein in the FP of control message and apply any of above-mentioned group technology, and can use the combination of above-mentioned group technology.

Below, use description to the method with method of communicating signals, via control channel, send A-A-MAP IE for carry out the method for broadcast to a plurality of UE.If allow various FP in system, need effectively with signal, to transmit FP.For example, can transmit the quantity of A-A-MAP IE allocation units of every group and the size of every group with signal.Alternatively, can in table, produce the quantity of all possible A-A-MAP IE allocation units of every group, and can transmit the index that is suitable for sending method with signal.Now, can for the maximum quantity of MLRU (for example, the maximum quantity of MLRU is 16,17,18,19,20,21,23,33,34,35,36,37,38,39,40,41,42) produce table, and can select index to send from being suitable for the table of sending method.

Below, use description to generation table and with signal, transmit the method for index.

In the first situation, can produce the public superset table (common superset table) that is independent of FP structure, and can use the index of table.For example,, even when the quantity of FP is 1,3 or 4, also can produce the table that can apply all FP.For this reason, can produce and comprise the superset table of all groups that can produce when the quantity of FP is 1,3,4.Now, according to sending method, determine superset.For example, in order to comprise all above-mentioned first, second, and third examples, generation can be applied the superset table of four groups altogether.In addition, in order to comprise all above-mentioned first, second and the 5th examples, generation can be applied the superset table of four groups altogether.In order to comprise all above-mentioned first, second and the 4th example, generation can be applied the superset table of six groups altogether.

In the second situation, can produce superset table, and can using signal and transmit the index relevant to specific FP as the subset of superset table.For example, if exist the superset table can apply 4 groups altogether to comprise all first, second, and third examples, can be by superset table for the first and the 3rd example, and in the second example, from superset table, optionally extract index, to send with signal.

In the third situation, can construct and produce respectively and use form according to FP.That is, can apply different tables according to FP.For example, in the quantity of FP is 1,3 or 4 system, produces the best table that is suitable for each situation, and with signal, transmit the index of table.Now, table generation principle is identical with said method.In the first example, can transmit use each the quantity of unit or the index of the table that group size produces in four groups with signal.In addition, in the second example, can transmit use each the quantity of unit or group size and the index of the table that produces in two groups with signal.In addition, in the 3rd to the 5th example, can transmit the quantity of use group or organize index big or small and table that produce with signal.

The quantity of FP or the type of table that can use BCH that needs are used are broadcast to UE, or with the special-purpose control message of the non-user in A-MAP, come to need with signal transmission the quantity of FP or the type of table used before making index of reference.

In the 4th kind of situation, can for example, by thering is the group of same alike result (, identical MCS level and/or IE size) in the group existing in combination FP, produce table.For example, in the 4th example or the 5th example, group 3 and group 1 have identical attribute, and group 4 has identical attribute with group 2.In this case, combination group 1 and group 3 form group A, and combination group 2 and group 4 form group B, thereby produce table.In this case, UE can be in combination the table in FP to increase the complexity of blind Detecting before decoding control message.

Meanwhile, except the standard for the control message that divides into groups of up to the present describing, can also making for the control message that divides into groups according to the control message such as uplink allocation, downlink allocation or down link permanent allocation.

Although in superincumbent description, grouping standard is the size of MCS level or control message, grouping standard is not limited to example above, and can carry out grouping based on various standards, and description is above applicable to various standards.Can with for generation of support various frequency bands and the table in control signal cycle Combination of Methods use for generation of the method for supporting the table of various FP and Signalling method.As the method for generation of table, can apply for consider group likely combine produce the method for table or for reducing the method for signaling consumption.

Subscriber equipment can receive in advance the information about control message pattern of rows and columns before using said method receiving control message.Then, subscriber equipment can receiving control message.Subscriber equipment can be by using the control message pattern of rows and columns comprising in information to detect its control message from the control message receiving.

Therefore,, by the information about control message pattern of rows and columns to notification of user equipment in advance before transmitting control message, can easily carry out blind Detecting simultaneous minimization expense.Therefore, can reduce for confirming complexity and the time of control message.

Figure 14 is the block diagram that the structure of the device that is applicable to base station and UE and can carries out said method is shown.As shown in Figure 14, device 60 comprises processing unit 61, memory cell 62, radio frequency (RF) unit 63, display unit 64 and user interface section 65.Processing unit 61 is carried out physical interface protocol layer.Processing unit 61 provides control plane and user plane.Processing unit 61 can execution level function.Memory cell 62 is electrically connected to processing unit 61, so that storage operation system, application program and generic-document.If device 60 is UE, display unit 64 can show much information, and can use known liquid crystal display (LCD) or Organic Light Emitting Diode (OLED) to realize display unit 64.Can carry out structuring user's interface unit 65 by the known users interface of combination such as keyboard or touch-screen.RF unit 63 is electrically connected to processing unit 61, to send or receive RF signal.

Data communications context based between base station and UE discloses the above embodiment of the present invention.In this case, base station is used as the terminal node of network, and base station can directly communicate with UE via this network.Where necessary, also can carry out the specific operation being undertaken by base station in the present invention by the upper node of base station.

In other words, it will be apparent to one skilled in the art that and it is evident that, the various operations that the network that base station or other network nodes except base station carry out forming for several network nodes by comprising base station can communicate with UE base station.Where necessary, term " base station " can be replaced by term fixed station, Node B, e Node B (eNB) or access point.Term of the present invention " UE " is corresponding to mobile radio station (MS).Where necessary, term " mobile radio station " is also to be replaced by terms user equipment (UE), subscriber station (SS), mobile subscriber station (MSS) or mobile terminal.

In addition, transmitter refers to for sending the node of data or voice service, and receiver refers to for receiving the node of data or voice service.Therefore,, in up link sends, UE can be transmitter, and base station can be receiver.Similarly, in down link sends, UE can be receiver, and base station can be transmitter.

Simultaneously, as UE of the present invention, can use personal digital assistant (PDA), cell phone, personal communication service (PCS) phone, global system for mobile communications (GSM) phone, wideband CDMA (WCDMA) phone or mobile broadband system (MBS) phone.For example, can be by implementing embodiments of the invention such as the multiple means of hardware, firmware, software or its combination.

By in hardware implementation situation of the present invention, can use application-specific integrated circuit (ASIC) (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor etc. to implement the present invention.

If implement operation of the present invention or function by firmware or software, can implement the present invention with the form of the various forms such as module, process, function etc.Software code can be stored in memory cell, to carried out by processor.Memory cell can be positioned in or beyond processor, thereby it can come to communicate with above-mentioned processor via various known means.

[embodiment of the present invention]

Various embodiment have been described in embodiment for realizing the present invention.

[industrial applicibility]

The present invention is used in UE or the network equipment using in wireless access system.

For those skilled in the art, it is evident that, without departing from the spirit and scope of the present invention in the situation that, can carry out in the present invention various modifications and change.Therefore, be intended to the present invention and cover modification of the present invention and change, as long as in this modification and the scope of change in appended claim and equivalent thereof.

Claims

1. the method for transmitting control message in base station at cellular system, described method comprises:

By a plurality of control messages at least one subscriber equipment being divided into groups to produce one or more control message groups based on following at least one standard: whether allow impliedly to use up link acknowledgement/non-acknowledgement (ACK/NACK) channel indexes at corresponding control message, corresponding control message for subscriber equipment whether can impliedly use ul ack/NACK channel indexes, the size of corresponding control message, whether corresponding control message is divided into the sub-block of predetermined number, be applied to Modulation and Coding Scheme (MCS) level of corresponding control message, the size of corresponding control message after application MCS level, and the frequency partition that wherein has corresponding control message, and

Send described one or more control message group,

Wherein, in described at least one standard, in each in described one or more control message groups, included control message equates.

2. method according to claim 1, wherein, sends described one or more control message groups with the state of arranging based on described at least one standard.

3. method according to claim 1 and 2, further comprises:

Via the special-purpose control message of non-user, the quantity of the control message with included in each in described one or more control message groups or each the relevant information of size in described one or more control message are sent to described at least one subscriber equipment.

4. method according to claim 1 and 2, wherein, each in described one or more control message groups occupies logically continuously or continuous physically Resource Unit.

5. method according to claim 1 and 2, wherein fractional frequency reuse (FFR) is applied to described cellular system, and a plurality of control message is present in at least one frequency partition (FP) in the middle of a plurality of frequency partition (FP) of FFR.

6. method according to claim 5, wherein arranges MCS level for each in described a plurality of FP.

For at cellular system at subscriber equipment place the method from base station receiving control message, described method comprises:

From described base station, receive one or more control message groups, whether described one or more control message group is by a plurality of control messages at least one subscriber equipment being divided into groups to produce based on following at least one standard: allow impliedly to use up link acknowledgement/non-acknowledgement (ACK/NACK) channel indexes at corresponding control message, corresponding control message for subscriber equipment whether can impliedly use ul ack/NACK channel indexes, the size of corresponding control message, whether corresponding control message is divided into the sub-block of predetermined number, be applied to Modulation and Coding Scheme (MCS) level of corresponding control message, the size of corresponding control message after application MCS level, and the frequency partition that wherein has corresponding control message, and

Based on the described one or more control message groups of described at least one standard decoding,

8. method according to claim 7, wherein receives described one or more control messages with the state of arranging based on described at least one standard.

9. according to the method described in claim 7 or 8, further comprise:

Via the special-purpose control message of non-user, from described base station, receive the information relevant with the quantity of control message included in each described one or more control message groups or each the size in described one or more control message group.

10. according to the method described in claim 7 or 8, wherein, each in described one or more control message groups is included in logic continuously or continuous physically Resource Unit.

11. according to the method described in claim 7 or 8, and wherein fractional frequency reuse (FFR) is applied to described cellular system, and a plurality of control message is present in at least one frequency partition (FP) in the middle of a plurality of frequency partition (FP) of FFR.

12. methods according to claim 11, wherein arrange MCS level individually for each in described a plurality of FP.