Communication of user specific control information in a wireless network

1. A method performed by a wireless device, the method comprising:

generating, by the wireless device, a rate-matched High Efficiency Signal B (HE-SIG-B) field by Block Convolution Code (BCC) encoding an HE-SIG-B field and rate-matching, according to a puncturing pattern, a BCC block of the encoded HE-SIG-B field;

generating, by the wireless device, a Physical Layer Protocol Data Unit (PPDU) including the rate-matched HE-SIG-B field; and

transmitting, by the wireless device, the PPDU,

wherein a total number N is a total number of bits of the HE-SIG-B field that precede the BCC block,

wherein the total number N is greater than 0, and

wherein the puncturing pattern depends on the total number N.

2. The method of claim 1 , wherein the BCC block has a code-rate of K/M, K and M being positive integers greater than zero, so that K bits of the BCC block are encoded into M bits, and

wherein the puncturing pattern depends on a remainder Z, the remainder Z being equal to the total number N modulo K.

3. The method of claim 2 , wherein the puncturing pattern is equal to a basic puncturing pattern for the code-rate K/M left cyclic-shifted by the remainder Z.

4. The method of claim 3 , wherein BCC encoding the BCC block includes:

generating a first set of encoded bits using a first polynomial, and

generating a second set of encoded bits using a second polynomial.

5. The method of claim 4 , wherein the code-rate is 3/4, wherein the first set of encoded bits includes a first plurality of consecutive three-bit sequences beginning at an earliest bit of the first set of encoded bits, wherein the second set of encoded bits includes a second plurality of consecutive three-bit sequences beginning at an earliest bit of the second set of encoded bits, and wherein rate-matching the BCC block includes:

discarding a third bit of each of the first plurality of consecutive three-bit sequences and a second bit of each of the second plurality of consecutive three-bit sequences when the remainder Z is equal to zero;

discarding a second bit of each of the first plurality of consecutive three-bit sequences and a first bit of each of the second plurality of consecutive three-bit sequences when the remainder Z is equal to one; and

discarding a first bit of each of the first plurality of consecutive three-bit sequences and a third bit of each of the second plurality of consecutive three-bit sequences when the remainder Z is equal to two.

6. The method of claim 4 , wherein the code-rate is 2/3, wherein the second set of encoded bits includes a plurality of consecutive two-bit sequences beginning at an earliest bit of the second set of encoded bits, and wherein rate-matching the BCC block includes:

discarding a second bit of each of the plurality of consecutive two-bit sequences when the remainder Z is equal to zero; and

discarding a first bit of each of the plurality of consecutive two-bit sequences when the remainder Z is equal to one.

7. The method of claim 4 , wherein the code-rate is 5/6, wherein the first set of encoded bits includes a first plurality of consecutive five-bit sequences beginning at an earliest bit of the first set of encoded bits, wherein the second set of encoded bits includes a second plurality of consecutive five-bit sequences beginning at an earliest bit of the second set of encoded bits, and wherein rate-matching the BCC block includes:

discarding third and fifth bits of each of the first plurality of consecutive five-bit sequences and second and fourth bits of each of the second plurality of consecutive five-bit sequences when the remainder Z is equal to zero;

discarding second and fourth bits of each of the first plurality of consecutive five-bit sequences and first and third bits of each of the second plurality of consecutive five-bit sequences when the remainder Z is equal to one;

discarding first and third bits of each of the first plurality of consecutive five-bit sequences and second and fifth bits of each of the second plurality of consecutive five-bit sequences when the remainder Z is equal to two;

discarding second and fifth bits of each of the first plurality of consecutive five-bit sequences and first and fourth bits of each of the second plurality of consecutive five-bit sequences when the remainder Z is equal to three; and

discarding first and fourth bits of each of the first plurality of consecutive five-bit sequences and third and fifth bits of each of the second plurality of consecutive five-bit sequences when the remainder Z is equal to four.

8. The method of claim 1 , wherein the HE-SIG-B field includes a plurality of BCC blocks, and further comprising:

BCC encoding the plurality of BCC blocks of the HE-SIG-B field as a single codeword.

9. The method of claim 1 , wherein the HE-SIG-B field includes a plurality of BCC blocks, wherein a plurality of total numbers N are respective total numbers of bits of the HE-SIG-B field that respectively precede the respective BCC blocks of the plurality of BCC blocks; and further comprising:

separately rate-matching the BCC blocks of the plurality of BCC blocks using respective puncturing patterns determined using the respective total numbers N.

10. The method of claim 1 , wherein the BCC block corresponds to a per-station (per-STA) information field, the per-STA information field including information for one or two stations.

11. A method performed by a wireless device, the method comprising:

receiving, by the wireless device, a Physical Layer Protocol Data Unit (PPDU) including a rate-matched High Efficiency Signal B (HE-SIG-B) field; and

generating, by the wireless device, a decoded HE-SIG-B field by de-rate-matching and decoding the rate-matched HE-SIG-B field, the rate-matched HE-SIG-B field including a rate-matched Block Convolution Code (BCC) block, wherein generating the decoded HE-SIG-B field includes

de-rate-matching the rate-matched BCC block according to a puncturing pattern depending on a total number N,

wherein the total number N is a total number of bits of the decoded HE-SIG-B field corresponding to bits of the rate-matched HE-SIG-B field that preceded the BCC block, and

wherein the total number N is greater than 0.

12. The method of claim 11 , wherein the BCC block has a code-rate of K/M, K and M being positive integers greater than zero, so that K bits of the BCC block are encoded into M bits, and

wherein the puncturing pattern depends on a remainder Z, the remainder Z being equal to the total number N modulo K.

13. The method of claim 12 , wherein the puncturing pattern is equal to a basic puncturing pattern for the code-rate K/M left cyclic-shifted by the remainder Z.

14. The method of claim 13 , wherein the code-rate is 3/4, and wherein de-rate-matching the encoded BCC block includes:

for each of a plurality of consecutive four-value sequences {x1, x2, x3, x4} in the encoded BCC block:

generating a first three-value sequence {x1, x3, D} and a second three-value sequence {x2, D, x4} when the remainder Z is equal to zero;

generating the first three-value sequence {x1, D, x3} and the second three-value sequence {D, x2, x4} when the remainder Z is equal to one; and

generating the first three-value sequence {D, x2, x4} and the second three-value sequence {x1, x3, D} when the remainder Z is equal to two,

wherein the plurality of consecutive four-value sequences begins at an earliest value of the encoded BCC block, and

wherein D is a predetermined dummy value.

15. The method of claim 13 , wherein the code-rate is 2/3, and wherein de-rate-matching the encoded BCC block includes:

for each of a plurality of consecutive three-value sequence {x1, x2, x3} in the encoded BCC block:

generating a first two-value sequence {x1, x3} and a second two-value sequence {x2, D} when the remainder Z is equal to zero; and

generating the first two-value sequence {x1, x2} and the second two-value sequence {D, x3} when the remainder Z is equal to one,

wherein the plurality of consecutive three-value sequences begins at an earliest value of the encoded BCC block, and

wherein D is a predetermined dummy value.

16. The method of claim 13 , wherein the code-rate is 5/6, and wherein de-rate-matching the encoded BCC block includes:

for each of a plurality of consecutive six-value sequence {x1, x2, x3, x4, x5, x6} in the encoded BCC block:

generating a first five-value sequence {x1, x3, D, x6, D} and a second five-value sequence {x2, D, x4, D, x6} when the remainder Z is equal to zero;

generating the first five-value sequence {x1, D, x3, D, x5} and the second five-value sequence {D, x2, D, x4, x6} when the remainder Z is equal to one;

generating the first five-value sequence {D, x2, D, x4, x6} and the second five-value sequence {x1, D, x3, x5, D} when the remainder Z is equal to two;

generating the first five-value sequence {x1, D, x3, x5, D} and the second five-value sequence {D, x2, x4, D, x6) when the remainder Z is equal to three; and

generating the first five-value sequence {D, x2, x4, D, x6} and the second five-value sequence {x1, x3, D, x5, D) when the remainder Z is equal to four,

wherein the plurality of consecutive six-value sequences begins at an earliest value of the encoded BCC block, and

wherein D is a predetermined dummy value.

17. The method of claim 11 , wherein the HE-SIG-B field includes a plurality of BCC blocks, wherein the encoded HE-SIG-B field includes a plurality of portions respectively corresponding to the plurality of BCC blocks, and further comprising:

de-rate-matching the plurality of portions as a single codeword.

18. The method of claim 11 , wherein the HE-SIG-B field includes a plurality of BCC blocks, wherein the encoded HE-SIG-B field includes a plurality of portions respectively corresponding to the plurality of BCC blocks, wherein a plurality of total numbers N are respective total numbers of bits of the HE-SIG-B field that respectively precede the respective BCC blocks of the plurality of BCC blocks, and further comprising:

separately de-rate-matching the portions of the encoded HE-SIG-B field according to respective puncturing patterns determined according to the respective total numbers N.

19. The method of claim 11 , wherein the BCC block corresponds to a per-station (per-STA) information field, the per-STA information field including information for one or two stations.