TWI311412B - Method and apparatus for indexing physical channels in an ofdma system - Google Patents

Description

197. The invention relates to an Orthogonal Frequency Division Multiplexing (OFDM) wireless communication system. More particularly, the present invention relates to a method and apparatus for indexing physical channels in an orthogonal frequency division multiplexing (OFDM) wireless communication system. [Prior Art] The φ active research range has been directed to the use of Orthogonal Frequency Division Multiplexing (OFDM) in wireless communication systems. OFDM is a special type of Multi-Carrier Modulation (MCM) in which an input serial symbol sequence is converted into parallel sequences and modulated into mutually perpendicular multiple subcarriers prior to transmission. OFDM is more commonly used in digital transmission techniques. Examples of OFDM used in digital transmission technology include digital audio broadcasting (DAB), digital television, and hotspot area network (WLAN). Since ofdm is effective against multipath fading, OFDM provides an effective platform for high speed data transmission. The main OFDM-based multiple access system is Orthogonal Frequency Division Multiple Access (OFDMA). In the 0FDMA towel, the frequency domain is divided into sub-channels, and each __ sub-channel has multiple sub-carriers. The time domain is divided into a plurality of time slots (8), and each sub-channel is allocated to a different user. The OTDMA used to allocate resources to the time-frequency domain can accommodate many users, but only uses a limited amount of resources per user. Figure 1 shows an example of a time_frequency 1311412 20887pif.doc source in a conventional OFDM wireless communication system. Referring to Figure 1, 'the horizontal axis represents time and the vertical axis represents frequency. An OFDM system typically emits a modulation symbol (quadrature shift key 1 (QPSK) or 16 azimuth quadrature amplitude modulation (16QAM) symbol) onto subcarrier ,, which is a basic resource. The rectangle representing the subcarrier 1 in a particular OTDM is a time-frequency resource. In general, each OFDM symbol 1 〇 2 includes a plurality of subcarriers. • As shown in Figure 1, all subcarriers are data subcarriers for polling data, and guard subcarriers do not exist. A basic packet transmission unit (referred to as a transmission period (ΤΉ)) 103 is formed with a set of OFDM symbols. In Fig. 1, each small rectangle is called a time_frequency bin and the TTI 103 is composed of a plurality of time-frequency chambers. A physical channel is a channel carrying different types of information, such as a paging channel, a packet data channel (PDCH), a packet data control channel (PDCCH), and an uplink used in a typical mobile k system. Uplink scheduling channel. Typically a ΤΉ 103 includes a plurality of physical channels. For example, some of the time-frequency chambers are used in the paging channel and other time-frequency chambers are used in the control loop (CCCH) to provide system information during TTI 1〇3. Also, at some time, the rate room is assigned to the PDCH and the other time_frequency chambers are assigned to the TOCCH to provide the control information required for PDCH demodulation during the TTI 103. Unless otherwise specified, other physical channels may be defined according to their purpose. Cross-body communication requires different time_frequency resources. For example, if 5_times and frequency bins are set in one TTI (ie, one ττι has 1〇1311412 20887pif.doc OFDM, and each OFDM symbol contains 500 data subcarriers), resources are allocated to make the above-mentioned paging channel. There are 1 subcarriers, CCCH uses 500 subcarriers, and 4000 subcarriers are used to transport the user's 400 subcarriers for transmission in pDCCHs. > In the above-described typical OFDM wireless communication system, resources are configured in a two-dimensional form into time and frequency, and multiple physical channels require a similar number of resources. Therefore, the time-frequency chamber assignment to the physical channel ^ must be φ effectively set and the time-frequency chamber assignment must also be communicated between the transmitter and the receiver. If 50 (8) subcarriers exist in a TTI, the & transmitter must notify the receiver that "each subcarrier #1 to #1" is used in the paging channel and each subcarrier #101 to #600 is used for In a common channel, for this purpose 'each physical channel can be identified using the 〇FDM symbol index and the subcarrier index. However, this method is inefficient, so the method uses too much information to identify each entity. Subcarriers of the channel. In special cases, when multiple PDCHs are multiplexed in one TTI, each PDCH is identified by a channel index. Under the corresponding channel # 引#, it must be in the transmitter and receive. The OFDM symbols and subcarriers assigned to the channel in which the channel index is located are pre-set between the devices. Figure 2 shows an example of indexing multiple physical channels in a conventional 〇fdM wireless communication system. 2, the horizontal axis represents time, and the vertical axis represents frequency. Each OFDM symbol 202 includes a plurality of subcarriers and each TTI 2〇3 is composed of a plurality of physical channels. Each physical channel is a time-frequency diversity channel (time) -freque Ncy diversity channel, TFDCH) 204, 205, or 206 1311412 20887pif.doc Temple effect, the configuration of this day 1 TFDCH needs to be more in the time and frequency in the TM. As shown in Figure 2, carrier; J cloth The pre-emptive method assigns this TFDCH in a specific TTI 2G3 with a careful adjustment of the ancient M and the definition of the original cytoplasm is defined by a corresponding channel index between the transmitter and the receiving cry. Printed τ:^ The same channel length (ie, the traditional technique of - can be: per-physical channel), as described above, the subcarrier used by the physical channel and the first octet. When the Tianbei and the Daoji have different channel lengths, the poor source of the channel or the index of the resource will be restricted by the method and device of the parent * not for the channel in the physical channel. Entity in a FDM Wireless Communication System [Description of the Invention] At least the above mentioned problems and/or disadvantages are disclosed and at least the following anvils are provided. Accordingly, it is a feature of the present invention to provide a method and apparatus for rate resources for each entity to pass through, in the case of a multiplexed _ _ ot odm wireless system A method and apparatus for efficiently defining a resource allocation unit that involves only frequency (4). 'And GFDM wireless communication system two-dimensional time _ example provided - should be wireless communication effectively allocate two-dimensional time, rate: #源的找和装置. 1311412 20887pif.doc is intended to aid in understanding embodiments of the invention and is merely an example. It will be apparent to those skilled in the art that the present invention may be modified and modified without departing from the scope and spirit of the invention. Further, the functions and structural descriptions which are known only are omitted for convenience of explanation, simplicity, and simplification. The present invention provides a TFDCH indexing method in which each TFDCH corresponding to a channel is composed of a time-frequency resource in a TTI (g

The "kth" of the N sets formed by the subcarriers is defined and the physical channel H* order pairs (N, k) are recognized. $ § The physical channels of different channel lengths exist in the same TTI. The sequence pair (N, k) used to identify each physical channel constitutes a tree structure to more effectively identify the time-frequency resource used. In the embodiment of the present invention, the actual == wide, The characteristics and the tree-like structure of the entity dongding 1 include 0 OFDM symbols and each 〇 FDM symbol is as low as 500 subcarriers, then there are 5 = = rate resources in one 。. The physical channel is the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ divided into N groups and - the brothers of the physical channel group k. This physical channel f-input method will be summarized as follows. (1) When all time_frequency resources are allocated to a single entity, the number of available physical channels is "Γ, and this entity channel definition = 16 pif.doc TFDCH(1,0). (2) When all When time-frequency resources are allocated to two physical channels, the number of available physical channels is "2" and the two physical channels are defined as TFDCH(2, 0) and TFDCH(2, 1). (3) When all When time-frequency resources are allocated to three physical channels, the number of available physical channels is "3" and the three physical channels are defined as TFDCH (3, 0), TFDCH (3, 1), and TFDCH (3, 2) ^ (4) The specific example of the above-mentioned entity channel index can be generalized to destructively index a physical channel into TFDCH(N, k) algebraically. There are various ways to define N with A physical channel of time-frequency resources, which is mathematically represented as follows: TFDCH(N, k)= - group of subcarriers with index η, n%N=(k+L+B)%N... .........(1) where % represents the modulo operation, L represents the 0FDM pay index in the TTI, B represents the base station (BS) index, and N represents the impending configuration. The number of channels, k(=0, . . . , Ν·1), represents the TFDCH index, and n represents the subcarrier index within the OFDM symbol. Therefore, TFDCH(N, k) is a set of subcarriers whose index n satisfies the equation. (1) In order to better understand the equation (1), the following will be explained with reference to Fig. 3. Fig. 3 shows an example of the introduction of a plurality of physical channels in the first embodiment of the present invention. The car is represented by time and the vertical car is represented by frequency. ΤΤΙ 303 is composed of 8 OFDM symbols 3〇2, and each 0FDM symbol chain pif.doc I3H412 302 has 32 subcarriers. At N=4, B==〇 When k=〇, the word 3〇1 represents the subcarrier of TFDCH(4, 0). The index of 8 OFDM symbols is from LK), and the index of 32 subcarriers in each symbol is From n=〇 to n=3〗 The TFDCH (4, 0) of the formula (1) is represented by a line inclined from the upper right. Equation (1) is a mathematical definition of a plurality of mathematical operations. It is easy to organize the TFDCH of a predetermined length. In addition to Equation (1), many other mathematical formulas can also be used to construct TFDCHs with different lengths of purpose. Now, the inflammation will be asked. To illustrate the different TFDCHs in the tree structure, FIG. 4 shows an example of indexing each body channel by a tree-like node in the first embodiment of the present invention. A TTI 403 is composed of 8 OFDM symbols and an OFDM symbol has 32 subcarriers. At N = 8, (4) and k = 〇日士 This reference number represents the subcarrier of TFDCH (8, Q), and the parameter = 404 represents the subcarrier of TFDCH (8, 4). TFDCpj (8 squares are skewed to the lower left line to represent. 'The index of the 8 OFDM symbols is from L=〇 to L==7, and the index of 32 subcarriers in the OFDM symbol is (4) Comparison to ^^I3 Figure 4 has been revealed. * The combination of TFDCH(8, 〇) and TFDCH(8, 4) is the same as FDCH(4, 〇). In other words, TFDCH(8, 〇) and TFDCH (8, the sentence is derived from TFDCH (4, 〇) °. This guard point is shown in the specific way of the physical channel indexing method of the embodiment of the present invention. D Figure 18 1311412 20887pif.doc Figure 5 shows this In the first embodiment of the invention, the tree-like hierarchical representation shown in Fig. 4 is shown. - Referring to Figure 5, a time-frequency resource of a TTI can be assigned to a single-body channel to cause a D-FDCH, which is tfdCH(] 〇) The day-to-day squad-frequency resource allocated to two physical channels can cause two TFDCHs, which are TFDCH(2, 〇) and TFDCH(2, υ, whose phase group: 疋 and D FDCH ( 1, 〇) the same. In the same way, TFD 4, TFDCH (4, 2) are derived from TFDCH (2, 〇), and TFD 'port is derived from h(4, q). The above reasons can be extended to ° in 5 Other tfdcHs. As mentioned above, TFDCHs of different lengths can be organized by the time_frequency source in the TTI and the corresponding node value is used for the TFDCHs = r":::'(N,k) transmitter It is more convenient to exchange information with a receiver for a source associated with a particular entity f. An example will be described below with reference to Figure 6. / Figure 6 is not corresponding to the first embodiment of the present invention - Multiplex = different lengths (four) entity pass _TFDCHs. TFD two ^ 2, 6, TFDCH (4, 〇), TM ^ Η (4, 2), and (,) knife users A, B, and by TKDCH (4, this 'first, π<mis derived length 8's 3') and TFDCH(8,7)+ respectively set CCCH and H)CCH. The following = description relates to other embodiments of the present invention , pointing out, and allocating 1 resource allocation unit. ~ In the example of the 瞀· 7 fi car of the present invention, there are two ways to define and indicate a 舆 2D resource in a 19 I31luu ding TI (ie, multiple times) - frequency room) related resources: with single = = one of the ways is to allocate resource channel (DRCH) method, in the » Hai knife with resource channel method, One channel is grouped with regularly distributed resources and pointed out. Another way is the local resource channel (LRCH) side.

One of the channels of the law is organized by adjacent resources and must be pointed out. The resource allocation units defined by the DRCH and LRCH methods are respectively displayed as dRCH(n, ^RCTi(&gt;i,k)' and the resources are fixed by N and k in drch(9), magic and lrc. Assigned to each physical channel. The DRCH(N,k) will be described with reference to Figure 7 and Figure 8. - Figure Y shows 7K. In the second embodiment of the present invention, the entity 5 as the DRCH (N, k) is indexed. Diagram of time. DRC_, the kth 'per' group corresponding to the N group has multiple time-frequency resources allocated or scattered in the -TTI. ' See Figure 7' - DingΉ 7〇4 There are 8 〇FDM symbols 703 in the index, and the index of the OTOM symbol is from L=〇 to L=7. Each of the 〇fdm numbers has 40 indexes with sub-carriers of n=0 to _. (4) This reference numerals 701 and 702 respectively indicate resources corresponding to the DRCH (the resource of 8 和 and the resource corresponding to the DRCH (8, 4). Each resource is allocated to the DRCH (8, 0) by the following side eight.) Eight knives per OFDM symbol Among them, 32 subcarriers are divided into n groups (that is, 8 out of 7), and each group has equidistant subcarriers. Especially the index of fine = wave is n, 8, 8, and ##! Yes (four), 9, $25}, group #2 when the index is η {2, 10, 18, 26}, group #3 index θ 5 η, !9, 27}, group #4 index is η={4, 12, 20 28} group #5疋 when n=, 20 0887pif.doc

I3i HU is n={5, 13, 21,29}, group #6 when the index is n={6, i4, a, 3〇}, and group #7 when the bow! Is n={7, 15, 23, 31}. In the example of (4), each of the subcarriers in each - OFDM symbol is separated from each other in the frequency domain by the same distance. The time_frequency resource of the DRCH (M) is determined according to the base station (BS) specific sequence S. This sequence s has many elements to be the number of OKDM symbols for each TTI.

In the case shown in Figure 7, the sequence. This sequence indicates the set of tissues used for the individual FDM symbols. The time-frequency resource of the base station (1) with the sequence ^{^, ^^7" and the DR&lt;](8, 〇) in the σ TTI is the group #0 and the OFDM symbol #1 in the OFDM symbol #0. Group #3, group #1 in 〇fdm symbol #2, group #7 in OFDM symbol #3, group #2 in OFDM symbol #4, group #6 in OFDM symbol #5, 〇FDM symbol #6 Group #〇4 in , and group #5 in OFDM symbol #7. When expressed in a general form, and the base station (BS) uses this sequence S={〇, 3, 1, 7, 2, 6, 4, 5}, with {(〇+k)%N,(3+k)%N, (1+k), (7+k)%N,(2+k)%N, (6+k )%N, (4+k)%N, (5+k)°/〇N} is represented by the group assigned to the DRCH(8, k) in the sequential 0FDM symbol of a TTI. Therefore 'corresponding to { 4%8, 7%8, 5%8, 11%8, 6%8, 10%8, 80/〇8, 9%8} 'ie, {4,7,5, 3, 6, 2, 1 , 0}, the group is assigned to a sequence of ofdJV [DRCH (8, 4) in the symbol in Fig. 7. Fig. 8 shows that in the second embodiment of the present invention, when s = {〇, 1, 2, Resources allocated to DRCH (8, 〇) and DRCH (8, 4) when 3, 4, 5, 6, 7}. Referring to Figure 8, the resource allocation method described above includes the DRCH method 21 I311412 20887pif.doc used to Determining resources And determine the allocation of each sequence pair (N, k). Each sequence pair (N, k) is formed in a tree structure, so that the time-frequency resources used by the physical channels of different channel lengths in a TTI can be more effectively identified. The "how to index the DRCHs in the tree structure" will now be explained with reference to Fig. 4 and Fig. 7. Referring to Fig. 7, there are 8 OFDM symbols 703 in one TTI 704. The index of the 〇FDM symbol 7〇3 is L = 〇 to L = 7. Referring additionally to Figure 4, each OFDM symbol contains 32 subcarriers whose index is from n = 〇 • to n - as described in Figure 4 above, E) RCH (8, 〇) 701 is the same as DRCH(4, 0) when combined with DRCH(8, 4) 702. In the same way, at S={0,3, 1,7,2, 6, 4,5}, DRCH(4) , 〇) is constructed in the following manner. Since N=4, the subcarrier of each 〇FDM symbol is divided into 4 ancestors, the index is from 0 to 3, and each group has equidistant subcarriers. The modulus-N (N=4) operation of the element results in {3, !,3, 2, 2, 〇, 1} and the groups corresponding to this sequence of results are assigned to the DRCH (4, 〇). The subcarrier Drch (4, 〇) is the same as the subcarriers combined with DHCH (8, 0) 701 and DRCH (8, 4) 7 〇 2 ' as shown in ® 7 . In other words, DRCH (8, 0) and DRCH (M) are derived from DRCH (4, 0). The tree structure is shown in Figure 9. Fig. 9 is a view showing a P white layer representation of the tree-like knot shown in Fig. 8 in the second embodiment of the present invention. For each touch, see Figure 9, - all time-frequency resource allocations / 只 only one rough pass, resulting in a DRCH, that is, DRCH (1, 〇). When all the time-sources are allocated to three physical channels, three are caused, namely H(3, 〇), DRCH(3, 1), and DRCH(3, 2), and when combined, 22 1311412 20887pif .doc is the same as DRCH(1, 〇). In the same way, DRCH (6, 〇) and DRCH (6, 3) are derived from DRCH (3, 0). The above situation can be extended to other DRCHs shown in FIG. As described above, DRCHs of different lengths can be organized by time-frequency resources in a TTI and indexed by the corresponding node values. That is, '(N, k) makes it easier to exchange information about the resources used by the particular physical channel between the transmitter and the receiver. An example will be described below with reference to FIG. Figure 10 shows DRCHs corresponding to multiple multiplexed physical channels of different lengths in a TTI in a second embodiment of the present invention. Referring to FIG. 10, DRCH (6, 0), DRCH (6, 3), DRCH (6, 1), and DRCH (6, 4) are used as PDCH 0 to PDCH 4, respectively. The DRCH (12, 2) is allocated as one type of PDCCH and the DRCH (12, 5) is allocated as one type of CCCH. When allocating N and k to DRCH(n, k), the resource depreciates and indicates the method to allocate to each physical channel in the resource allocation unit described above. Now, LRCH(N, k) will be described with reference to FIG. Figure 11 is a diagram showing the indexing of the transport of the LRCH (N, k) as a third embodiment of the present invention. LRCH(N, k) corresponds to the kth of the N groups, and the parent group is the time-frequency resource that has been localized in -ττΐ.

Please read Figure 11, there are 8 ofdm symbols 1105 in a TTI 1106. The index of the OFDM symbol is from l=〇 to l=7. There are 32 indices in each OFDM pay number 1105 that are subcarriers from n = 〇 to n = 31. When N=4 and k=0, this reference numeral 1101 represents a resource corresponding to lRCH(4, 〇). Among the 8 OFDM symbols of each resource, index n=〇 to 7 23 1311412 20887pif, (64 副 subcarriers of j 〇 c. Of the 8 OFDM symbols of this TTI, 64 subcarriers are allocated to the port ^玫七丨), such as the quotation of the quotation of 64 subcarriers to LRc^4, ', the n subcarriers of n~24 to μ are allocated to lRc only (4, = mode to LRCH (2, 〇) When structuring, L_a 〇) is the same as the resource of the combination of RCH (4, 0) and LRCH (4, 1). ', the above LRCH tree shown in Figure 11. The structure is similar to the DRCH tree structure in Figure ι〇. LRCH(N, k) can be divided into multiple groups in time, for example, where 峨(10)' is a timeline ^: a 〇FDM in TTI Symbol index. This reference number η represents the resource corresponding to LRCH(4, 2, 0) in the first 〇FDM f. Similarly, LRCH(4, 2, 1) occupies resources in the first 〇FDM symbol. 4. Therefore, the combination of LRCH(4, 2, 〇) and LRCH(4, 2, 1) is included in lrch(4, 2). When multiple users use data in LRCH(N, k) LRCH (N, k, m) is available for multiplex hours. Figure 12 shows Figure 11 in the third embodiment of the present invention. The hierarchical structure of the tree structure shown in Fig. 12. Please refer to Fig. 12, when all the time_frequency resources of a TTL are allocated to the consistent body channel, an LRCH can be caused, which is 〇). All time-frequency resource allocation Two LRCHs, which are LRCHA 0 and LRCH(2,1), can be combined into two physical channels, which are combined with LRCH(1,0). In the same way, lrch(4, 2) and LRCH (4, 3) is derived from LRCH (2, 1). The above principles can be extended to other LRCHs as shown in Figure 9. 24 1311412 20887pif.doc Figure 13 shows the physical access to the OF D system in the embodiment of the present invention. Block diagram of the transmitter and receiver. Ding Zonggong used one or two =: transmitter _ including - transmission controller coffee, only biliary, index is 1303, a traffic transmitter OFDM transmitter 307. And - method = The control 331 is in accordance with the embodiment of the present invention, the physical channel index ft pair: the multiplexed long-term S-body indexer 13 of the plurality of physical channels having different lengths in the TTI. 3 is in the transmission controller 丨3.1. = 霄 通道 channel closing index information. Traffic transmitter m5 will be stored by 1 = block or h layer, _ Wei traffic to it Internal impulses. 〇F=]y[Transporter 13〇7 is controlled by the transmission controller 13〇1 by the index, the multiplex of the signal to create the frame and the traffic channel. The functional elements of the transmitter 1300 have gone beyond the embodiments of the present invention, for example, the fast Fourier transform (FFT) is not shown in FIG. The receiver 1310 includes an OFDM receiver 1311, a physical header analyzer 1313, a reception controller 1315, and a traffic reception OFDM receiver 13n receives the frame from the transmitter and receives This block is demultiplexed under the control of the controller 1315. The physical channel cable analyzer 1313 analyzes the index information of the received body channel under the control of the receiving controller 1315. The receiving controller controls the "complex channel of different lengths" according to the physical channel indexing method of the embodiment of the present invention. This traffic receiver 317 stores the traffic data received by the OFDM receiver (3) 5 into its internal memory. As with the transmitter 1300, the functional elements of the receiver 1310 have gone beyond the scope of embodiments of the present invention. According to the above embodiment of the present invention, since the physical channels of different lengths are organized and indexed in a tree structure in the OFDM wireless communication system, the two-dimensional resources allocated to each physical channel can be easily used in the wheel. Circulates with the receiver. Further, the embodiment of the present invention can easily indicate a plurality of subcarriers allocated to each of the real φ body channels, so that the ordering and use of resources can be performed efficiently. The present invention has been disclosed in the above preferred embodiments, but it is not intended to limit the scope of the present invention. Modifications and refinements, ^ The scope of protection of the present invention is defined by the scope of the appended claims. [Simple diagram of the diagram] Solid 1", the member of the traditional OFDM wireless communication system time_frequency resources - an example. ..., Figure 2_ not traditional 〇 FDM # line communication system indexing multiple entities An example of the bow 1 indicates that the plurality of physical channels are mapped in the first embodiment of the present invention, and an example of indexing a plurality of group channels in a tree structure in the first embodiment of the present invention is shown. A white-layered representation of the tree structure shown in Fig. 4 in the first embodiment of the present invention is shown in Fig. 5 pf.doc 1311412, in the first embodiment of the present invention. TFDCHs corresponding to a plurality of physical channels of different lengths in a TTI. - Figure 7 shows an illustration of DRC (N, the imaginary beribal channel indexing in the second embodiment of the present invention. Figure 8 shows In the second embodiment of the present invention, when 丨, 2, 3, 4, 6, } is assigned to DRCH (S, 〇) and DRCH (8, resource of sentence. = Displaying FIG. 8 in the second embodiment of the present invention A hierarchical representation of the illustrated tree structure. Figure 10 shows a second embodiment of the present invention corresponding to a plurality of The DRCiis of the physical channel of the same length. 2, the illustration of the shell channel as the LRCH (N, k) in the third embodiment of the present invention. The staff member shows FIG. 11 in the third embodiment of the present invention. A hierarchical representation of the tree structure shown in the figure. The OFDM wire towel transmission material for indexing the physical channel in the embodiment of the present invention is shown in the block diagram of the receiver. [Main element symbol description] 101, 201 102, 202 103 203 204, -206 301, &gt; 401 302, 402 303, 403 subcarrier 03 PDM symbol transmission period time-frequency diversity channel subcarrier OFDM symbol transmission period 27 1311412 20887pif.doc 404 subcarrier 701, 702 resource 703 OFDM symbol 704 transmission Time resource

1101~1104 1105 1106 1300 1301 1303 1305 1307 1310 1311 1313 1315 1317 OFDM symbol transmission period transmitter transmission controller physical channel indexer traffic transmitter OFDM transmitter receiver OFDM receiver physical channel index analyzer receiver controller traffic receiver 28

Claims (1)

I31141Z 95117078 Chinese patent scope without scribe correction 20887pif.doc X. Patent Application Range: 1. A method for indexing physical channels in an OFDMA system, wherein one OFDM symbol comprises a plurality of subcarriers and one TTI comprises a plurality of OFDM symbols, 0FDMA represents orthogonal frequency division multiplexing access, OFDM representation Orthogonal frequency division multiplexing, TTI represents a transmission period, and the method for indexing a physical channel in an OFDMA system includes the following steps: The total number of subcarriers per OFDM symbol is divided into N groups; The kth group is selected from N groups in each OFDM symbol of the TTI; and the physical channel corresponding to one of the subcarriers included in the kth group of the TTI is performed by a sequence pair (N, k) index. 2. The method of indexing a physical channel in an OFDM system as described in claim 1, wherein the step of selecting is an offset of each OFDM symbol indicated by a base station specific sequence S having L elements. To determine 'the towel L is the number of FDM symbols included in the TTI and S = {S1, ·." SL}. The method of claim 4, wherein the sequence S={S1, , two {(si+k)m+k)%Ni is calculated, wherein % represents a mode. Number g. 4. As described in the patent application _ 之 之 f resistance ^ : = physical channel method 'where the corresponding to the indexed entity = the middle one f wave group according to each order pair (N, k) The subcarrier group of the two pairs of sub-indexes: one ^ 29 1311412 20887pif.doc η〇5. - a type of transmitter 'indexes the physical channel in the OFDMA system and transmits the indexed physical channel, One of the OFDM symbols includes a plurality of subcarriers and one TTI includes a plurality of OFDM symbols, OFDMA indicates orthogonal frequency division multiplexing access OFDM indicates orthogonal frequency division multiplexing, and TTI indicates a transmission period, and the transmitter includes: a transmission controller, which divides the total number of subcarriers per OFDM symbol into N groups, whereby the kth group is selected from n groups in each OFDM symbol of the TTI by the pair (N, k) The physical channel corresponding to a group of subcarriers in the kth group of the TTI is indexed, and the multiplex of the indexed physical channel is controlled; the physical channel indexer is indexed as a physical channel under the control of the transmission controller Information; and an OFDM transmitter, which is controlled by the transmission controller to make a frame to be transmitted to the receiver by multiplying the index information of the physical channel and the traffic channel. 6. The transmitter of claim 5, wherein the step of selecting is determined by an offset of each OFDM symbol indicated by a base station specific sequence having L elements, wherein The number of symbols and &quot;S1,...,SL} is widely used in the TTI. The passer as described in claim 6, wherein the order (SL+k)%N} is calculated. The column S={S1,...,SL} is represented by {(si+k)%N,.. out of which % represents a modulus operation. 30 131141⁄2 87pif.doc 131141⁄2 87pif.doc ua_.. αα::' When forming a tree structure' corresponds to the adjacent: the subcarriers of the pair, and the group.疋 is the same as the sub-group corresponding to the parent pair. 9. Receiver, information related to the index of the OFDMA system, the actual channel, where == package: multiple (four) Μ symbol, clothing y and knife frequency multiplex access, 〇 FDM means orthogonal frequency division, I denotes a transmission period, the receiver includes: OFDM receiving n 'which receives the data from the transmitter and receives the index information of the physical channel and the channel under the receiving control H (4); a physical channel index analyzer that analyzes index information of the received physical channel under the control of the receiving controller; and a receiving controller that controls the solution multiplexing of the physical channel from the TTI, each The physical channel has been indexed by dividing the total number of subcarriers per OFDM pay number into n groups, and selecting the ^^ group from N groups in each OFDM symbol of the ττι, and corresponding The physical channel is indexed by a set of subcarriers contained in the kth group of the ordered pair (N, k). 10. The receiver of claim 9, wherein the step of selecting is determined by an offset of each OFDM symbol indicated by a base station specific sequence s having L elements, wherein l is included The number of OFDM symbols in the TTI and S = {S1, ..., SL}. 11. The receiver of claim 10, wherein the sequence S={S1, . . . , SL} is represented by {(Sl+k)%N,...,(SL+k)%N} Calculated as 31 131143⁄4 87pif.doc, where % represents the modulus operation. 12. The receiver of claim 9, wherein when the subcarrier group corresponding to the indexed physical channel is sorted into a tree structure according to a relationship between each of the sequence pairs (9), k), corresponding to the phase The combination of the subcarrier groups of the adjacent subsequence pairs is the same as the subcarrier group corresponding to the mother sequence pair. 13. A system for transmitting and receiving a plurality of indexed physical channels in an OFDMA system, wherein one OFDM symbol comprises a plurality of subcarriers and one TTI comprises a plurality of ofdm symbols, and OFDMA represents orthogonal frequency division multiplex accesses. OFDM represents orthogonal frequency division multiplexing, TTI represents a transmission period, and the system includes: a base station 'which includes a transmitter that divides the total number of subcarriers per 〇 FDM symbol into N groups, The transmitter then selects the kth group from the N groups of the OFDM symbols, and indexes the physical channel corresponding to a set of subcarriers included in the kth group of the TTI with the ordered pair (N, k). And the transmitter transmits the indexed physical channel; and the terminal includes a receiver that receives the physical channel indexed by (N, k) from the transmitter of the base station. 14. The system for transmitting and receiving a plurality of indexed physical channels in an OFDMA system as claimed in claim 13 wherein the step of selecting is indicated by a base station specific sequence s having L elements. The offset of each OFDM symbol is determined, where l is the number of OFDM symbols included in the TTI and S = {S1, ..., SL}. 15. In the 0FDMA system described in claim 14 of the patent application, 32 1311412 2〇887pif.d〇c year m -j Multiple indexed physical channel (4) systems, wherein the sequence 1 is. / / ·.., L} is calculated from i(sl+k)%N,...,(SL+k)%N), where /〇 denotes a modulus operation. A system for transmitting a plurality of indexed physical channels in a (10) tender system as described in claim 13 wherein the subcarrier group corresponding to the physical channel corresponding to the index is based on each sequence pair (N, k) When sorted into a tree structure, the combination of subcarrier groups indexed by adjacent subsequence pairs is the same as the subcarrier group indexed by the mother sequence pair. W17.r kind of 0FDMA system used to index physical channels, eight symbols include multiple subcarriers and one TTI includes multiple OTDM Wei, 〇FDMA indicates orthogonal frequency division multiplexing access, ^FDM indicates positive The parent divides and divides the multiplex, and the TTI indicates the transmission period. The method used for the physical channel in the (10)^retracting system includes the steps of the town. The time and frequency resources of the TTI are divided into N equidistant and localized groups. And the physical channels corresponding to the kth group between the N groups are indexed by a sequence pair (N, k); The kth group is divided into m equidistant groups by time, and the physical channels corresponding to the divided groups are indexed by the order pair (N, k, m). 18. A method for indexing physical channels in a 〇FDMa system as described in claim 17 wherein the subcarrier groups corresponding to the indexed physical channels are based on the relationship between the sequence pairs (9), k) When sorted into a tree structure, the combination of subcarrier groups indexed by adjacent subsequence pairs is the same as the subcarrier group indexed by the mother sequence pair. 19. A transmitter 'on a physical channel in a 〇FDMA system 33 1311412 20887pif.doc And routing the indexed physical channel, wherein one OFDM symbol includes multiple subcarriers and one TTI includes multiple OFDM symbols, OFDMA represents orthogonal frequency division multiplexing access, and OFDM represents orthogonal frequency division multiplexing. ΤΉ denotes a transmission period, the transmitter comprises: a transmission controller, which divides the time_frequency resource of the TTI into n equidistant and localized groups, and the physical channel corresponding to the kth group between the N groups is Indexed by order (N, k), the kth group is divided into m by time The equidistant group 'corresponding to the physical channels of the divided groups is indexed by k, m), and the transmission controller controls the multiplexing of the indexed physical channels; The index H' is made into the index information of the physical channel under the control of the transmission controller; and is controlled by the entity to be transmitted to the OFDM transmitter, and the index information of the transmission control channel and the traffic channel is performed. Multi-receiver box. The transmitter according to the scope of claim 19, wherein when the subcarrier groups of the pair of physical channels are sorted into a tree structure according to the relationship of N, the combination of the 'wave group is corresponding to The mother-sequence pair channel includes the multi-copper carrier with the physical symbol and - TTHH' where - 0FDM ο-ma ^ 'gong face wheel, tearing = table subtraction crossover more 34 131143⁄4 87pif.doc The camphor receives 11, which subtracts from the pass (four)-face and in a == the multiplexed frame that has been received is multiplexed into a physical channel and intersected The receiving controller 'which controls the demultiplexing of the physical channel from the TTI' per-physical channel is indexed by the following: TTI time_frequency resources are divided into N equidistant and localized groups, The physical channels corresponding to the kth group between the N groups are indexed by a sequence pair (N, k), and the kth group is divided into m equidistant groups by time, and corresponds to the divided groups. The physical channel of the group is indexed by the ordered three elements (N, k, m). , The receiver of claim 21, wherein the subcarrier group corresponding to the indexed physical channel is based on each sequence pair (N, between illusions). When the relationship is sorted into a tree structure, the combination of subcarrier groups corresponding to adjacent subsequence pairs is the same as the subcarrier group corresponding to the mother sequence pair. 23. Transmission and reception of multiple indexed systems in an OFDMA system The system used by the physical channel, one OFDM symbol includes a plurality of subcarriers and one TTI includes a plurality of ofdm symbols, 0FDMA represents orthogonal frequency division multiplexing access, OFDM represents orthogonal frequency division multiplexing, and TTI represents a transmission period. The system comprises: a base station comprising a transmitter, the transmitter dividing the time-frequency resource of the TTI into N equidistant and localized groups, and the n groups correspond to the entity of the kth group The channel is indexed by the order pair (n, k) 'the kth group is divided into groups of equidistant time by time, corresponding to the divided 35 I3imiP, d〇c is a physical channel with a sequenced three element (K k,m) for the cable carrier 5 5; and the ground crying includes a receiver, the receiver Receiving the transmission from the base port _ the physical channel with (N, k) (4).钤和 =料(四) 23 items are described in the system of 0-side A pure-transfer slaves' where the combination of the corresponding groups is the pair: the sub-carrier of the second-order pair 36