Examples of 'walsh codes' in a sentence
Meaning of "walsh codes"
walsh codes: Walsh codes are a set of binary sequences used in telecommunications and signal processing for various applications such as multiplexing, error detection, and channel coding. These codes are characterized by their orthogonality and ability to minimize interference in communication systems
How to use "walsh codes" in a sentence
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walsh codes
Walsh codes are orthogonal channelizing codes that are used in forming the received signal.
The channels are established by a set of orthogonal Walsh codes.
Walsh codes are used to identify the data for each individual transmission.
The orthogonal symbol patterns are generated by Walsh codes and the like.
The Walsh codes assigned to each active subscriber station are unique within the cell.
Each branch of the Walsh tree corresponds to a subset of the possible Walsh codes.
Traffic channels use any remaining Walsh codes subject to overall capacity as limited by noise.
OVSF codes are also referred to as Walsh codes.
Walsh codes are a mathematical set of sequences that have the function of " orthonormality ".
As orthogonal codes, Walsh codes are used.
According to a particular aspect of the invention, said spreading codes are Walsh codes.
This approach allows the re-use of Walsh codes in every subregion.
Walsh codes permit multiple users to share a single frequency band ( CDMA channel ).
To facilitate description, the Walsh codes are only taken as example for description.
Each Walsh code is 64 chips long and is precisely orthogonal to all other Walsh codes.
See also
In an embodiment, available resources include number of Walsh codes available at a given base station.
Whereas, power control commands from different base stations are demodulated using different Walsh codes.
Here, the Walsh codes or the quasi-orthogonal codes may be used for the orthogonal codes.
The channel signals are independently separated by using the Walsh codes and the quasi-orthogonal codes.
The 32 Walsh codes can be generated from combinations of 5 basis Walsh codes.
Examples of such orthogonal codes include Walsh codes and orthogonal variable spreading factor ( OVSF ) codes.
Each sub-channel uses different Walsh codes.
In a preferred embodiment, eight Walsh codes of length 512 are allocated for the UICH channel.
The data transmitted on the F-PDCH is spread using one or more Walsh codes.
Walsh All, for example, represents all the Walsh codes included in a Walsh code space.
These quasi-orthogonal codes can be used in every CDMA system using Walsh codes.
In a hybrid slot, there would be Nd-Nv Walsh codes for the high rate data user.
The receiver of claim 10, wherein the spreading codes are Walsh codes.
That is, Walsh ( i ) may include a different set of Walsh codes during different data transmission periods.
The method of claim 19, wherein the spreading codes are Walsh codes.
Referring to Table 1, Table 1 shows walsh codes used by the foregoing 8 DMRS ports respectively.
The transmitter of claim 1, wherein the spreading codes are Walsh codes.
Preferably, four Walsh codes of length 512 are used for the channel.
For each user, a respective power control bit is modulated by one of 16 Walsh codes.
The modulator ( 104 ) derives a sequence of fixed length Walsh codes from the interleaved data symbols.
The remaining Walsh codes are assigned to the traffic channels CH1-CH55 as shown in Figure 3.
The basis Walsh code generator 810 generates basis Walsh codes of a predetermined length.
Voice users may take up all of the SHCH 16-ary Walsh codes.
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