RU2298876C2 - Method for compact submission of signals warning about milticodes in communication systems - Google Patents

Abstract

FIELD: extended-code communication systems incorporating provision for warning about multicodes.

SUBSTANCE: proposed method for compact submission of signals warning about multicodes includes evaluation of multicode quantity and code displacement, generation of code word incorporating code group indicator and displacement indicator; code word provides for compact submission of signals warning about multicodes; mentioned code word is compiled and can be decoded dispensing with reference table.

EFFECT: reduced amount of service data transmitted in the course of sending warning signal.

20 cl, 5 dwg

Description

FIELD OF THE INVENTION

The present invention relates to multi-code signaling and, in particular, relates to a compact representation of multi-code signaling in communication systems.

State of the art

In some communication systems, a code division multiple access (WCDMA, WCDMA) is used as an access method. To increase the data transfer rate per user, the user can be allowed to use several extension codes (multi-code mode). One of the specific areas in which such a multi-code mode is applied is packet access in high speed downlink (PDSNL, HSDPA), in which the expansion coefficient for the user is set to a fixed value, namely 16.

When using (PDSNL) of the base station, it is required to transmit signals to the mobile communication node or user equipment (UE, OP) exactly as many times as the multi-codes were assigned, using the offset from which the set of codes begins (all codes are determined with the value of the expansion coefficient, equal to 16). It is assumed that a single cluster of consecutive codes is assigned to one user at a time.

In the general case, the most efficient OPs can support up to 15 multi-codes, and in case of using a single code, up to 15 different code offsets can be used, since one code (offset 0) is reserved for the common P-CPICH / P-CCPCH channels. Usually 4 bits are used to represent the number of multi-codes and 4 bits are used to represent the offset in the code tree. Therefore, to provide the most flexible signaling, only 2 × 4 = 8 bits are required.

Currently, a number of proposals are known, according to which only a certain subset of all possible multi-codes can be assigned, which allows you to switch to the presentation of information about multi-codes with a smaller number of bits, for example, no more than 5 bits. However, since higher multicode flexibility leads to increased spectrum utilization as well as higher RRM flexibility (quality of service (QoS), code / temporal multiplexing), it is advisable to only limit the set of possible multicode as much as possible.

Some combinations of the number of multi-codes and code offsets are not possible. For example, if a user is assigned 15 multi-codes, then there is the only possible combination of offsets. In general, there are only 120 combinations. The construction of a lookup table with possible combinations allows us to present 120 combinations based on the use of 7 bits. However, the main disadvantage of the method based on the lookup table is that to decode the received information on the side of the OP requires additional memory.

In a number of other proposals, instead of indicating the initial position and number of codes, as an alternative to maintaining maximum flexibility while reducing the number of bits, a method is used in which information about the assignment of codes is reported only within the list of possible combinations of code distribution. However, this method leads to the so-called "conditional" signaling, which should be avoided if possible.

It was also proposed to reduce the number of possible multi-codes, so that, for example, to provide 1, 5, 10 and 15 multi-codes as available options. Such a solution would require 6 bits for signaling, but at the expense of less flexibility in the distribution of codes.

Thus, there is a need to reduce the amount of overhead transmitted during the signaling process by using signaling methods that provide efficient use of bits while maintaining system performance and flexibility.

SUMMARY OF THE INVENTION

The present invention relates to a method for compact presentation of multi-code signaling, which consists in determining the number of multi-codes, determining a code offset and composing a code word that contains a code group indicator and an offset indicator. The codeword gives a compact representation of multi-code signaling, moreover, it is composed and it can be decoded without the need for a look-up table.

When compiling the codeword, the first term is determined, the first term being the minimum number of multicode and sixteen minus the number of multicode; determining the first part of the codeword by subtracting a unit from the first member, the first part being an indicator of the code group; determining a second term, the second term being equal to zero if seven is greater than or equal to the number of multi-codes, or equal to one if the number of multi-codes is greater than seven; determining a third term by calculating the fourth term by multiplying the second term by fifteen and subtracting the fourth term from the code offset minus one; determining the second part of the codeword by taking the absolute value of the third term, the second part being an offset indicator; and form a codeword by connecting the first part of the codeword with the second part of the codeword.

In addition, the present invention relates to a method for decoding a codeword for multi-code signaling, which comprises identifying a codeword, the codeword comprising a code group indicator and an offset indicator; determine the number of multi-codes from the code word; and determining a code offset from the codeword. The number of multi-codes and the corresponding code offset can be determined without the need for a look-up table.

Decoding a codeword for multi-code signaling may include: identifying a first part and a second part of a codeword, the first part representing a code group indicator and the second part representing an offset indicator; calculating the first term, the first term being equal to one if the second part is greater than or equal to fifteen minus the first part, otherwise the first term is zero; calculating the second term by multiplying the first term by sixteen; identification of the number of multi-codes by taking the absolute value of the first part plus one minus the second term; calculating the third term, the third term being equal to one if the number of multicode is greater than or equal to eight, otherwise the third term is zero; calculating the fourth term by multiplying the third term by seventeen; and identifying the code offset by taking the absolute value of the second part plus one minus the fourth term.

The present invention also relates to a system for compact presentation of multi-code signaling, the system comprising a network, a base station operatively connected to the network, and a network device operatively connected to the base station via the network. The base station determines the number of multi-codes and code offset for use by their network device. The base station encodes the indicated number of multi-codes and code offset, converting them into a code word containing a compact representation of multi-code signaling. The codeword can be encoded by the base station and decoded by the remote device without the need for a look-up table.

In addition, the present invention relates to a mobile device capable of receiving a codeword representing multi-code signaling, the mobile device comprising hardware and software that perform: identifying a first part and a second part of a code word, the first part being a code group indicator, and the second part is an offset indicator; calculating the first term, the first term being equal to one if the second part is greater than or equal to fifteen minus the first part, otherwise the first term is zero; calculating the second term by multiplying the first term by sixteen; identification of the number of multi-codes by taking the absolute value of the first part plus one minus the second term; calculating the third term, the third term being equal to one if the number of multicode is greater than or equal to eight, otherwise the third term is zero; calculating the fourth term by multiplying the third term by seventeen; and identifying the code offset by taking the absolute value of the second part plus one minus the fourth term.

Brief Description of the Drawings

Next, with reference to the following set of drawings, a detailed description of the present invention follows by way of non-limiting examples thereof; wherein the same reference numbers represent similar parts in all the drawings, in which:

1 is a block diagram of a system for compact presentation of multi-code signaling according to an exemplary embodiment of the present invention;

FIG. 2 is a code allocation diagram according to an exemplary embodiment of the present invention; FIG.

FIG. 3 is a diagram of a general coding matrix for allocating multi-codes for signaling according to an exemplary embodiment of the present invention; FIG.

4 is a flowchart of an encoding process according to an exemplary embodiment of the present invention; and

5 is a block diagram of a decoding process according to an exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The details described herein are exemplary for the purpose of discussing embodiments of the present invention. Those skilled in the art from the description, together with the drawings, will appreciate how the present invention can be practiced.

It should further be noted that the means proposed in the invention can be presented in the form of block diagrams in order to avoid ambiguities in understanding the essence of the invention; it is also necessary to take into account that the specific details associated with the implementation of these flowcharts are highly dependent on the platform on which the present invention is to be implemented, that is, the specific details should in no way go beyond the scope of the art known to those skilled in the art. Specific details (e.g., flow charts, process flow charts) are disclosed below only to describe exemplary embodiments of the invention, and it will be apparent to those skilled in the art that the invention can be practiced without these specific details. Finally, it should be clear that any combination of hardware circuitry and software instructions can be used to implement embodiments of the present invention, that is, the present invention is not limited to any particular combination of hardware circuitry and software commands.

Although exemplary embodiments of the present invention can be described using a block diagram of a system in a host computer environment, the practical embodiment of the invention is not limited to this, that is, the invention can be practiced using other types of systems or other types of environments.

Used in the description, the term "one option" or "option" means that a particular feature, structure or characteristic described in connection with this option is contained in at least one embodiment of the invention.

The phrase “in one variant”, which occurs at different places in the description, does not necessarily refer to the same variant.

The present invention relates to an effective method for optimizing signaling about the number of codes used and the offset in the code tree. This method can be applied to systems in which the expansion coefficient can be 16, or to systems with an expansion coefficient other than 16, while maintaining coding efficiency. According to the present invention, in order to signal which code and offset are used for the communication line, the data can be packaged in a self-decoding structure, eliminating the need for a look-up table. The present invention provides an efficient signaling method that allows maximum multicode flexibility and on-the-fly encoding and decoding (without buffering). This can be achieved through the use of data on the number of multi-codes and code offset, which provides a direct and consistent signaling.

The present invention may be useful and be implemented in many application systems, such as wideband code division multiple access (WCDMA) and especially packet access for high speed downlink (PDSNL, HSDPA). In this sense, high-speed common control channel (BC-CMOS, HS-SCCH) for a common high-speed downlink (HSCHCH, HS-DSCH) channel can be sent information about a set of codes for channelization. Orthogonal codes with a variable spreading factor (OCRS, OVSF) can be distributed so that they are arranged in a code tree sequentially. Thus, according to the present invention, the number of multi-codes M, starting from offset P, can be allocated to this channel OCHSNL and transmitted on the channel OCHSNL, and M and P can be encoded using only three bits for the code group indicator and four bits for the code shift indicator , that is, only seven bits, which is one less than in the known methods.

1 shows a block diagram of a system for compact presentation of multi-code signaling according to an exemplary embodiment of the present invention. Base station 10 may communicate with one or more network devices 12-20 over network 22. In this exemplary embodiment, network 22 is a wireless network, and network devices 12-20 may also be wireless. However, the present invention can be implemented in both wired and wireless networks. Network devices can be wireless devices, such as a mobile phone, laptop computer, personal digital information device (IED), and the like. or can be workstations, servers, etc.

Whenever a base station 10 needs to communicate with a network device 12-20, this base station 10 determines how many multi-codes must be allocated for communication. Then, the base station 10 can send information to the network device informing the network device about how many multicode will be used for communication, as well as which code offset in the code tree the multicode starts from. Base station 10 may decide how many multi-codes can be distributed to a particular network device or user, depending on various factors, for example: the amount of information to be sent from the base station to the user; the composition of other operations currently performed at the base station; the power available at the base station and / or network device; information about free or used codes in the code tree, etc. The base station 10 may encode information about the number of multi-codes and code offset, using the encoding function 24. Each network device 12-20 may include a decoding function 26 for decoding a codeword received from the base station 10 and extracting information about the number of multi-codes and code offset. Both base station 10 and network devices 12-20 may comprise encoding functions and / or decoding functions. Encoding functions and / or decoding functions can be implemented in hardware, software, using microcode (microcommands), or using a combination of these tools.

Figure 2 presents a diagram of the distribution of codes according to an exemplary embodiment of the present invention. The code tree 30 has an expansion coefficient of 16, with 15 multi-codes available for distribution between one or more users. A base station communicating with a user or network device determines how many multi-codes can be distributed to one user and what is the code offset. The base station can send this information to the user in the form of a code word. In this, an example, embodiment, codes were assigned to one user with offsets 7-11. All of these codes are sequential. Thus, five multi-codes are allocated to a user or network device by the base station, starting at code offset 7. According to the present invention, this information can be sent to the user in the form of a code word containing a reduced number of bits, for example, seven bits. The first part of the codeword may comprise a code group indicator, and the second part of the codeword may comprise an offset indicator. The present invention is not limited to the indicated order of the code group indicator and the offset indicator in the code word, since this order may depend on the particular implementation.

Figure 3 schematically shows a common coding matrix for signaling the distribution of multi-codes according to an exemplary embodiment of the present invention. This matrix shows a pair of numbers, one at the top, representing the number of multi-codes, and one at the bottom, representing the offset from left to right in the code tree. Corresponding code indicators are presented on the left side of the matrix vertically, and the corresponding displacement indicators are shown above the matrix horizontally.

In the methods for compact presentation of multi-code signaling according to the present invention, multi-codes are grouped in clusters with a total number of possible offset combinations of 15. In this sense, multi-code 1 and multi-code 15 are grouped together, multi-code 2 is grouped with multi-code 14, etc. Thus, only eight groups are formed (1/15, 2/14, 3/13, 4/2, 5/11, 6/10, 7/9 and 8/8), each of which can be represented by an alarm using 3 bits. The next problem is determining which of the two codes is active and what the exact code offset value is. This problem is solved taking into account the fact that the total number of code offsets is 16 for each cluster that allows 4-bit representation.

The methods for compactly representing multi-code signaling according to the present invention can be implemented in many ways in which a codeword is provided containing code indicator information and code offset information of less than eight bits in length. The following describes in detail an example coding process according to the present invention, in which, for signaling purposes, it is necessary to transmit a codeword with information about m multi-codes with a code offset Δ. The first part of the codeword (KC1, CW1) may be a code group indicator. The second part of the codeword (KC2, CW2) may be an indicator of the offset in the tree. Equation 1 can be used to encode the code group indicator, and Equation 2 can be used to encode the displacement indicator in the tree.

The first three bits:

The last four bits:

"min" outside the brackets means that of the two terms in brackets (separated by a comma), the member with the minimum value is selected. The expression (m> 7) is either set to 1 or 0, depending on whether or not this inequality holds, that is, 1 means "truth" and vice versa. The symbol "*" indicates the operation of multiplication. Two vertical lines "|" indicate that the absolute value of the resulting value of the terms inside two vertical lines is taken.

For example, the codeword needed to signal 12 multi-codes with a code offset of 2 is as follows:

CW1 = min (12.4) -1 = 3 = '011'

CW2 = | 2-1- (12> 7) * 15 | = 14 = '1110'

Thus, the codeword as a whole will be '0111110' (or '1110011' depending on the implementation). This codeword can be sent from the base station to the network device.

4 is a flowchart of an encoding process according to an exemplary embodiment of the present invention. The number of multi-codes and code offset are determined in block S1. In block S2, a codeword is composed that contains a code group indicator and an offset indicator. The minimum value of the number of multi-codes and the result of subtracting from 16 the number of multi-codes are obtained in block S3. In block S4, the first part of the codeword is determined by subtracting a unit from the above minimum value. This first part is a code group indicator. In block S5, the second term is determined, which is equal to zero if seven is more than the number of multi-codes, or equal to one if the number of multi-codes is more than seven. The fourth term is determined in block S6 by multiplying the second term by fifteen. The third term is determined in block S7 by subtracting the fourth term from the code offset minus one. In block S8, the second part of the codeword is determined by taking the absolute value of the third term. The second part is an offset indicator. The codeword is generated in block S9 by concatenating (connecting) the first part of the codeword with the second part of the codeword.

After receiving the codeword, the network device can decode it to determine the number of multicode and code offset. The following describes in detail an example decoding process according to the present invention, in which the number of multi-codes (m) and code offset (Δ) are extracted from a 7-bit codeword (CW1 + CW2). To extract the code group indicator from the codeword, equation 3 can be used. To extract the offset indicator from the codeword, equation 4 can be used in the tree.

For the example considered above, we have

m = | 3 + 1- (14≥12) * 16 | = 12

Δ = | 14 + 1- (12≥7) * 17 | = 2

which are transmitted.

5 is a flowchart of a decoding process according to an exemplary embodiment of the present invention. In block S20, a codeword is identified that contains a code group indicator and an offset indicator. The first part and the second part of the codeword are identified in block S21. The first part may represent a code group indicator, and the second part may represent an offset indicator. In block S22, a first term is calculated, the first term being equal to one if the second part is greater than or equal to fifteen minus the first part, otherwise the first term is zero. The second term is determined in block S23 by multiplying the first term by sixteen. The number of multi-codes is determined in block S24 by taking the absolute value from the first part plus one minus the second term. In block S25, a third term is determined, the third term being equal to one if the number of multicode is greater than or equal to eight, otherwise the third term is zero. The fourth term is determined in block S26 by multiplying the third term by seventeen. In block S27, the code offset is determined by taking the absolute value of the second part plus one minus the fourth term.

In another encoding embodiment according to the present invention, Equation 5 can be used to encode the code group indicator and Equation 6 to encode the offset indicator in the tree.

The first three bits:

The last four bits:

"min" outside the brackets means that of the two terms in brackets (separated by a comma), the member with the minimum value is selected. The symbol “/” indicates division, and the brackets [] indicate rounding to the nearest lower integer. The symbol "*" indicates the operation of multiplication. Two vertical lines "|" indicate that the absolute value of the resulting value of the terms inside two vertical lines is taken. This encoding option gives similar results, namely a codeword (CW1 CW2) with a total length of only seven bits.

A computer pseudo-language for encoding and decoding according to the present invention is further illustrated as an example. However, the encoding and decoding according to the present invention is not limited to these presentation options.

Coding:

if (m <8)

START

CW1 = m-1

CW2 = Δ-1

END

otherwise

START

CW1 = 15-m

CW2 = 16-Δ

END

Decoding:

m = CW1 + 1

Δ = CW2 + 1

if (Δ> 16-m)

START

▽ = 16-CW2

m = 16- (CW1 + 1)

END

In the methods for compactly presenting multi-code signaling according to the present invention, encoding and / or decoding can be implemented in a hardware encoder and decoder, respectively, by computer software, firmware, and the like. In addition, although the base station typically performs encoding and the network node performs decoding, the base station and network node may have an encoding function or a decoding function, or may have both of these functions.

An advantage of the compact presentation methods for multi-code signaling according to the present invention is that maximum multi-code flexibility can be maintained to achieve high spectrum utilization efficiency (SINSL) and RRM flexibility. In addition, the code word can be decoded by the network devices themselves, which eliminates the need for a code lookup table, which saves memory space. Thus, based on the obtained codeword, all parameters can be calculated. In addition, the ability to transmit information using fewer bits saves power and allows you to use the available bits to transmit other information. A big advantage of the present invention is the support for packet access in high speed downlink (PDSNL), in which the expansion coefficient for users is assigned a fixed value equal to 16.

It should be noted that the above examples are provided only to explain the essence of the invention and should not be construed as limiting the present invention. Although the present invention has been described with reference to a preferred embodiment, it is understood that the terms used herein are used to describe and illustrate, and not as restrictive. Changes may be made to the appended claims without departing from the scope and spirit of the present invention in all its aspects. Although the present invention has been described with reference to specific methods, materials and options, it is understood that the present invention is not limited to the details disclosed herein, but applies to all functionally equivalent structures, methods and practical uses that are not beyond the scope of the attached claims.

Claims (22)

1. A method of reducing the volume of signaling overhead by providing a compact representation of multi-code signaling, which consists in determining the number of multi-codes used for communication, determining the code offset in the code tree and generating a code word, the code word being generated by combining the code group indicator for a certain number of multi-codes and an offset indicator for code offset, the code word includes a compact representation of the signal tion of a multi-codes. 2. The method according to claim 1, characterized in that when forming the codeword, the first member of the codeword is additionally determined, the first member of the codeword contains the minimum number of multicode and sixteen minus the number of multicode, the first part of the codeword is determined by subtracting the unit from the first member of the codeword words, the first part being an indicator of a code group, determining the second member of the code word, the second member of the code word being zero if seven is greater than or equal to the number of multi-codes, and T the second codeword member is equal to one, if the number of multi-codes is more than seven, the third codeword member is determined by computing the fourth codeword member by multiplying the second codeword member by fifteen and subtracting the fourth codeword member from the code offset minus one, determine the second part of the codeword by taking the absolute value of the third member of the codeword, the second part being an offset indicator, and forming the codeword by connecting the first part of the codeword fishing with the second part of the codeword. 3. The method according to claim 1, characterized in that the code group indicator contains three bits. 4. The method according to claim 1, characterized in that the offset indicator contains four bits. 5. A method for decoding a codeword for multi-code signaling, which consists in identifying a codeword, the codeword comprising a code group indicator and an offset indicator, determining the number of multi-codes used for communication from the code word based on the code group identifier and determining the code offset in the code tree from the code word based on the offset indicator, the number of multi-codes and the corresponding code offset being determined without the need for Table 1, thus creating a decoded codeword for signaling about multi-codes. 6. The method according to claim 5, characterized in that when decoding the codeword for signaling about multi-codes, the first part and the second part of the codeword are identified, the first part representing the code group indicator and the second part representing the offset indicator, calculating the first member of the code word, moreover, the first member of the codeword is equal to one if the second part is greater than or equal to fifteen minus the first part, otherwise the first member of the codeword is zero, the second member of the codeword is calculated by multiplying the first by sixteen, identify the number of multi-codes by taking the absolute value of the first part plus one minus the second member of the code word, calculate the third member of the code word, the third member of the code word being one if the number of multi-codes is greater than or equal to eight, otherwise the third member of the code word equal to zero, calculate the fourth term of the codeword by multiplying the third term of the codeword by seventeen and identify the code offset by taking the absolute value of the second part plus u maths minus the fourth term of the codeword. 7. The method according to claim 5, characterized in that the code group indicator contains three bits. 8. The method according to claim 5, characterized in that the offset indicator contains four bits. 9. A system for compact presentation of multi-code signaling, comprising a communication network, a base station operatively connected to a communication network, a network device operatively connected to a base station via a communication network, the base station including means for determining the number of multicode and code offset for use of their network device to communicate with the base station, while the base station further includes means for encoding the number of multi-codes and code c escheniya thus forms a code word, the code word is encoded by the base station and decoded by the remote device without the need for a lookup table. 10. The system according to claim 9, characterized in that the communication network is a wireless communication network. 11. The system according to claim 9, characterized in that the network device is a wireless device. 12. The system according to claim 11, characterized in that the wireless device is either a cordless telephone, or a laptop computer, or a personal digital information device (IED). 13. The system according to claim 9, characterized in that the base station is configured to perform an encoding function, wherein the encoding function is to determine the first member of the codeword, the first member of the codeword containing the minimum number of multicode and sixteen minus the number of multicode, determining the first part code word by subtracting a unit from the first member of the code word, the first part being an indicator of the code group, determining the second member of the code word, the second member the codeword is zero if seven is more than the number of multi-codes, and the second member of the codeword is equal to one, if the number of multi-codes is more than seven, determining the third member of the codeword by calculating the fourth member of the codeword by fifteen and subtracting the fourth member of the codeword from the code offset minus one, determining the second part of the code word by taking the absolute value of the third member of the code word, the second part being an indicator displacements, and forming the codeword by combining a first part of the codeword with the second part of the codeword. 14. The system according to item 13, wherein the encoding function can be implemented at least by appropriate hardware and / or software. 15. The system according to claim 9, characterized in that the remote device is configured to perform a decoding function, wherein the decoding function is to identify the first part and the second part of the code word, the first part being a code group indicator and the second part representing an offset indicator, calculating the first member of the codeword, the first member of the codeword being equal to one if the second part is greater than or equal to fifteen minus the first part, otherwise the first member of the codeword is is zero, calculating the second term of the codeword by multiplying the first term of the codeword by sixteen, identifying the number of multi-codes by taking the absolute value of the first part plus one minus the second term of the codeword, calculating the third term of the codeword, and the third term of the codeword is one if the number the multicode is greater than or equal to eight, otherwise the third member of the codeword is zero, computing the fourth member of the codeword by multiplying the third member of the codeword by seventeen and identifying the code offset by taking the absolute value of the second part plus one minus the fourth member of the code word. 16. The system of clause 15, wherein the decoding function can be implemented at least by appropriate hardware and / or software. 17. A mobile device configured to receive a codeword representing multi-code signaling, wherein the mobile device is configured to identify a first part and a second part of a code word, the first part representing a code group indicator and the second part representing an offset indicator, calculating the first member a codeword, the first member of the codeword being equal to one if the second part is greater than or equal to fifteen minus the first part, otherwise the first member of the codeword ova is zero, calculating the second term of the codeword by multiplying the first term of the codeword by sixteen, identifying the number of multi-codes by taking the absolute value of the first part plus one minus the second term of the codeword, calculating the third term of the codeword, and the third term of the codeword is one if the number of multi-codes is greater than or equal to eight, otherwise the third member of the codeword is zero, computing the fourth member of the codeword by multiplying the third member of the codeword with Peninsula seventeen and a code identifying bias by taking the absolute value of the second part plus one minus the fourth term of the codeword. 18. The method of presenting multi-code signaling, which consists in transmitting from the base station the number of multi-codes (M) and code offset (P) from the base station and composing a code word, the code word comprising a code group indicator and an offset indicator, the indicator the code group is equal to the minimum of M-1 and 15-M, the offset indicator is equal to the absolute value of P-1 - ((M / 8, rounded to the nearest lower integer) times 15), while the code word contains seven bits. 19. The method according to claim 19, characterized in that they additionally send a code word on a high-speed common control channel (BC-OKU). 20. The method according to p. 18, characterized in that it further comprises a code word without the need for a lookup table. 21. A system for reducing signaling overhead by providing a compact presentation of multi-code signaling, comprising a communication network, a base station operatively connected to the communication network, a network device operatively connected to the base station through the communication network, the base station determining the number of multicode and code an offset for use by their network device to communicate with the base station, wherein the base station generates a codeword by encoding the number of multi-codes and code offset, transforming them into a codeword. 22. The system of claim 21, wherein the base station is configured to perform an encoding function, wherein the encoding function includes means for transmitting to the network device the number of multi-codes (M) and code offset (P) and means for compiling the code word by combining the code group indicator and the offset indicator, with the code group indicator equal to the minimum of M-1 and 15-M, the offset indicator is equal to the absolute value of P-1 - ((M / 8, rounded to the nearest lower integer) times 15 ), wherein the codeword comprises seven bits.

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