umtsUplinkReferenceChannels

UMTS uplink measurement channel definition

Syntax

config = umtsUplinkReferenceChannels(rc)

Description

config = umtsUplinkReferenceChannels(rc) returns a structure containing the configuration parameters for the UMTS uplink reference channel defined by rc. The output structure, config, contains the configuration parameters required by umtsUplinkWaveformGenerator to generate an uplink reference channel waveform. umtsUplinkReferenceChannels uses, rc, to initialize a configuration data structure that is compliant with one of the reference channels defined in the following 3GPP standards:

• Uplink RMC configurations are defined in TS 25.101, Annex A.2 [1].

• Uplink E-DPDCH FRC configurations are as defined in TS 25.141, Annex 10 [2].

Examples

UMTS Uplink Reference Channel Initialization

Initialize a 'RMC12.2kbps' reference channel.

Generate the configuration structure, config.

rc = 'RMC12.2kbps';
config = umtsUplinkReferenceChannels(rc);

The output from umtsUplinkReferenceChannels provides the input required to generate the desired UMTS waveform corresponding to these settings.

Examine the DPDCH field in config. This field uses a nested structure to define this physical channel for the 'RMC12.2kbps' reference channel.

config

config = struct with fields:
            TotFrames: 1
       ScramblingCode: 1
           FilterType: 'RRC'
    OversamplingRatio: 4
      NormalizedPower: 'Off'
                DPDCH: [1x1 struct]
                DPCCH: [1x1 struct]
                HSUPA: [1x1 struct]
              HSDPCCH: [1x1 struct]

config.DPDCH

ans = struct with fields:
             Enable: 'On'
         SlotFormat: 2
    CodeCombination: 64
              Power: 0
         DataSource: 'CCTrCH'
             CCTrCH: [1x1 struct]

config.DPDCH.CCTrCH

ans = struct with fields:
    Name: 'DCH'
    TrCH: [1x2 struct]

config.DPDCH.CCTrCH.TrCH(1)

ans = struct with fields:
                 Name: 'DTCH'
                  CRC: '16'
           CodingType: 'conv3'
                  RMA: 256
                  TTI: 20
           DataSource: 'PN9-ITU'
    ActiveDynamicPart: 1
          DynamicPart: [1x1 struct]

config.DPDCH.CCTrCH.TrCH(1).DynamicPart

ans = struct with fields:
       BlockSize: 244
    BlockSetSize: 244

config.DPDCH.CCTrCH.TrCH(2)

ans = struct with fields:
                 Name: 'DCCH'
                  CRC: '12'
           CodingType: 'conv3'
                  RMA: 256
                  TTI: 40
           DataSource: 'PN9-ITU'
    ActiveDynamicPart: 1
          DynamicPart: [1x1 struct]

config.DPDCH.CCTrCH.TrCH(2).DynamicPart

ans = struct with fields:
       BlockSize: 100
    BlockSetSize: 100

Input Arguments

rc — Reference channel configuration

character vector | string scalar

Reference channel configuration, specified as a character vector or string scalar. rc identifies which RMC or E-DPDCH FRC to configure. Values for rc when specified as a character vector include (for string scalar use double quotes):

Parameter Field	Required or Optional	Values	Description
rc	Required	Reference measurement channels: 'RMC12.2kbps', 'RMC64kbps', 'RMC144kbps', 'RMC384kbps'	Reference channel identifying the W-CDMA uplink RMC configuration set-up as defined in TS 25.101, Annex A.2 [1].
		E-DPDCH Fixed Reference Channels: 'FRC1', 'FRC2', 'FRC3', 'FRC4', 'FRC5', 'FRC6', 'FRC7', 'FRC8'	Reference channel identifying the E-DPDCH FRC configuration as defined in TS 25.141, Annex A.10 [2].

Note

Additional standards-based reference channels can be configured by executing lteUplinkReferenceChannels and then adjusting parameters to match configurations defined in TS 25.141 [2]. For example:

• To generate the HS-DPCCH RMC, use 'RMC12.2kbps' and set HSDPCCH.Enable = 'On'.

• To generate the 12.2 kbps RMC defined in TS 25.141 [2], use 'RMC12.2kbps'. Using this value the function initializes config to generate the TS 25.101 [1] 12.2 kbps RMC). After config is generated, adjust the DPDCH and DPCCH parameters to align with the settings in TS 25.141 [2].

Data Types: char | string

Output Arguments

config — Definition of the channels included for the waveform generator

structure

Top-Level Parameters and Substructures

Definition of the channels included for the waveform generator, returned as a structure.

Parameter Field	Required or Optional	Values	Description
TotFrames	Required	Positive scalar integer	Total number of frames to be generated
ScramblingCode	Required	Scalar integer $$0-\left(2^{24}-1\right)$$	Scrambling code index used by UE
FilterType	Required	'RRC', or 'Off'	Enable the RRC filter
OversamplingRatio	Required	Positive scalar integer	Oversampling ratio
NormalizedPower	Required	Float (-inf to +inf) or 'Off' to disable power normalization	Overall waveform power in dBW relative to 1 ohm
DPDCH	Optional	Not present or single structure	See DPDCH Substructure.
DPCCH	Optional	Not present or single structure	See DPCCH Substructure.
HSUPA	Optional	Not present or single structure	See HSUPA Substructure.
HSDPCCH	Optional	Not present or single structure	See HSDPCCH Substructure.

DPDCH Substructure

Include the DPDCH substructure in the config structure to add the dedicated physical data channel to the output structure. The DPDCH substructure contains the following fields.

Parameter Field	Required or Optional	Values	Description
Enable	Required	'On', 'Off'	Enable or disable the channel by specifying Enable as 'On' or 'Off, respectively.
SlotFormat	Required	Nonnegative integer	DPDCH slot format number, specified as 0, 1, 2, 3, 4, 5, or 6.
CodeCombination	Required	Nonnegative integer, vector	Valid spreading factors, specified as a power of two or a vector of powers of two in the interval [4, 256].
Power	Required	Float, –inf, inf	Channel power in dB, specified as a float, –inf, or inf.
DataSource	Required	Scalar, vector, character vector, cell array, string scalar	DPDCH data source, specified as a scalar, vector, cell array, or string scalar. When defined as a cell array, use standard PN sequences and a seed value: {PN, seed}. PN options for character vector or cell array are 'PN9-ITU', 'PN9', 'PN11', 'PN15', and 'PN23'. If no seed is specified, the shift register is initialized with all ones. To enable transport channel coding, specify DataSource as 'CCTrCH'.
CCTrCH	Optional	Structure	See CCTrCH Substructure.

CCTrCH Substructure

The CCTrCH substructure is associated with the DPDCH physical channel definition substructures. The CCTrCH substructure contains the following fields.

Parameter Field	Required or Optional	Values	Description
Name	Optional	Character vector, string scalar Default depends on the physical channel specified	Name assigned to the CCTrCH, specified as a character vector or a string scalar. Functions do not use the Name field. Therefore, you can redefine the content with no consequence.
TrCH	Required	Structure, structure array	Transport channels in the CCTrCH, specified as a structure or a structure array.
TrCH.Name	Required	Character vector or string scalar Default depends on the physical channel specified	Name assigned to the TrCH, specified as a character vector or a string scalar. Functions do not use the Name field. Therefore, you can redefine the content with no consequence.
TrCH.CRC	Required	Character vector, string scalar	Cyclic redundancy check (CRC) polynomial specifier, specified as one of these values: '0', '8', '12', '16', or '24'.
TrCH.TTI	Required	Positive integer	Transmission Time Interval (TTI) in ms, specified as 10, 20, 40, or 80.
TrCH.CodingType	Required	'turbo', 'conv2', 'conv3'	Channel coding type and rate, specified as 'turbo', 'conv2', or 'conv3'.
TrCH.RMA	Required	Positive integer	Rate matching attribute value, specified as a positive integer in the interval [1, 256].
TrCH.DataSource	Required	Binary scalar, binary vector, character vector, cell array, or string scalar	Transport channel data source, specified as a binary scalar, a vector with binary entries, a cell array, or a string scalar. When defined as a cell array use standard PN sequences and a seed value: {PN, seed}. PN options for character vector or cell array are 'PN9-ITU', 'PN9', 'PN11', 'PN15', and 'PN23'. If no seed is specified, the shift register is initialized with all ones.
		Examples for setting the DataSource field include: ...CCTrCH.TrCh(1).DataSource = [1 0 0 1], generates a sequence of transport blocks by looping the vector [1 0 0 1]. ...CCTrCH.TrCh(1).DataSource = 'PN9', generates a physical channel data block with random seed = 511. ...CCTrCH.TrCh(1).DataSource = {'PN9',5}, generates a physical channel data block with seed = 5.
TrCH.ActiveDynamicPart	Required	Positive integer, vector	Active dynamic part, specified as a positive integer or a vector whose entries are positive integers in the interval [1, length(DynamicPart)].
		The ActiveDynamicPart field indicates the DynamicPart array index for the active transport format (BlockSize, BlockSetSize) from available combinations defined in DynamicPart. The selected transport format is used for data transmission in the current TTI.
TrCH.DynamicPart	Required	Structure, structure array	Size of each transport block, specified as a structure or a structure array.
		The DynamicPart fields, BlockSize and BlockSetSize, define the size of each transport block and the total bits per transport block set. As a pair (BlockSize, BlockSetSize) describe a transport format set. DynamicPart defines one or multiple transport format sets.
TrCH.DynamicPart.BlockSize	Required	Positive integer	Transport block length, specified as a positive integer.
TrCH.DynamicPart.BlockSetSize	Required	Integer, multiple of BlockSize	Total number of bits in the transport block set. Implementation does not support multiple transport blocks, so by definition BlockSize is equal to BlockSetSize.

DPCCH Substructure

Include the DPCCH substructure in the config structure to add the dedicated physical control channel to the output structure. The DPCCH substructure contains the following fields.

Parameter Field	Required or Optional	Values	Description
Enable	Required	'On', 'Off'	Enable or disable the channel by setting Enable to 'On' or 'Off', respectively.
SlotFormat	Required	Nonnegative integer	DPCCH slot format number, specified as 0, 1, 2, 3, 4, or 5.
Power	Required	Float, –inf, inf	DPCCH power in dB, specified as a float, –inf, or inf.
TPCData	Required	Binary scalar, binary vector	Transmit power control data, specified as a binary scalar or a vector with binary entries.
TFCI	Required	Nonnegative integer	Transport format combination indicator, specified as a nonnegative integer in the interval [0, 1023].
FBIData	Required	Binary scalar, binary vector	Feedback information data, specified as a binary scalar or a vector with binary entries.

HSUPA Substructure

Include the HSUPA substructure in the config structure to add the high speed uplink packet access information and channels to the output structure. The HSUPA substructure contains the following fields.

Parameter Field	Required or Optional	Values	Description
Enable	Required	'On', 'Off'	Enable or disable the channel by specifying Enable as 'On' or 'Off', respectively.
CodeCombination	Required	Positive integer, vector	Valid one-code combinations for BPSK modulation are: 2, 4, 8, 16, 32, 64, 128, and 256. Valid two-code combinations for BPSK modulation are [2 2] and [4 4]. The valid four-code combination for BPSK and 4PAM modulation is [2 2 4 4].
EDPDCHPower	Required	Float, –inf, inf	E-DPDCH channel power in dB, specified as a float, –inf, or inf.
EDPCCHPower	Required	Float, –inf, inf	E-DPCCH channel power in dB, specified as a float, –inf, or inf.
RSNSequence	Required	Vector	Retransmission sequence numbers, specified as a vector whose entries are 0, 1, 2, or 3. The length of this vector determines the number of retransmissions.
ETFCI	Required	Nonnegative integer	E-TFCI value, specified as a nonnegative integer in the interval [0, 127].
HappyBit	Required	0 or 1	Happy bit, specified as 0 or 1.
DataSource	Required	Scalar, vector, character vector, cell array, or string scalar	E-DPDCH data source, specified as a binary scalar, a vector with binary entries, a character vector, a cell array, or a string scalar. When specifying DataSrouce as a cell array, use standard PN sequences and a seed value: {PN, seed}. PN options for character vector or cell array are 'PN9-ITU', 'PN9', 'PN11', 'PN15', and 'PN23'. If no seed is specified, the shift register is initialized with all ones. To enable transport channel coding, specify DataSource as 'EDCH'.
EDCH	Required	Structure	Enhanced dedicated channel (EDCH), specified as a structure.
EDCH.BlockSize	Required	Nonnegative integer	Transport block size, specified as a nonnegative integer.
EDCH.TTI	Required	2, 10	Transmission Time Interval (TTI), in ms, specified as 2 or 10.
EDCH.Modulation	Required	'BPSK', '4PAM'	Modulation scheme, specified as 'BPSK' or '4PAM'.
EDCH.DataSource	Required	Scalar, vector, character vector, cell array, or string scalar	E-DCH transport data source, specified as a binary scalar, a vector with binary entries, a character vector, a cell array, or a string scalar. When specifying DataSource as a cell array, use standard PN sequences and a seed value: {PN, seed}. PN options for character vector or cell array are 'PN9-ITU', 'PN9', 'PN11', 'PN15', and 'PN23'. If no seed is specified, the shift register is initialized with all ones.

HSDPCCH Substructure

Include HSDPCCH substructure in config structure to add the high speed dedicated physical control channel to the output structure. The HSDPCCH substructure contains the following fields.

Parameter Field	Required or Optional	Values	Description
Enable	Required	'On', 'Off'	Enable or disable the channel by specifying Enable as 'On' or 'Off', respectively.
Power	Required	Float, –inf, inf	HS-DPCCH channel power in dB, specified as a float, –inf, or inf.
CQI	Required	Nonnegative integer, vector	CQI values, specified as a nonnegative integer or a vector whose entries are nonnegative integers in the interval [0, 30].
HARQACK	Required	Nonnegative integer, vector	HARQACK messages, specified as a nonnegative integer or a vector whose entries are nonnegative integers in the interval [0, 3].
UEMIMO	Required	0, 1	Flag to indicate MIMO mode, specified as 0 or 1.

References

[1] 3GPP TS 25.101. “Universal Mobile Telecommunications System (UMTS); User Equipment (UE) Radio Transmission and Reception (FDD).” 3rd Generation Partnership Project; Technical Specification Group Radio Access Network. URL: https://www.3gpp.org.

[2] 3GPP TS 25.141. “Universal Mobile Telecommunications System (UMTS); Base Station (BS) Conformance Testing (FDD).” 3rd Generation Partnership Project; Technical Specification Group Radio Access Network. URL: https://www.3gpp.org.

Version History

Introduced in R2015a