Abstract
A method for allocating resources for a scheduling request indicator (SRI) is disclosed. An SRI cycle period for use by user equipment (UE) within a cell is transmitted from a NodeB in a cell to UE within the cell. The NodeB transmits a specific SRI subframe offset and an index value to the particular UE within the cell. The specific SRI subframe offset and the index value enable the UE to determine a unique combination of cyclic shift RS orthogonal cover data orthogonal cover and resource block number for the UE to use as a unique physical resource for an SRI in the physical uplink control channel (PUCCH).
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
Not Available | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
4G | 15/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member |
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Technologies
Product
Use Cases
Services
Claim
1. A method for sending a scheduling request indicator (SRI) by a user equipment (UE), comprising:
receiving an index value n;
determining an SRI cycle period;
determining a SRI subframe offset;
determining a unique combination of cyclic shift, reference signal (RS) orthogonal cover, data orthogonal cover, and resource block number to use as a unique physical resource for the SRI in a physical uplink control channel (PUCCH) according to the index value n; and
transmitting the SRI at a next assigned transmission opportunity after the UE determines that it needs to transmit data or information;
wherein the next assigned SRI transmission opportunity is based upon the SRI cycle period and the SRI subframe offset.
2. The method of claim 1 wherein the SRI cycle period extends the unique physical resource to a persistent periodic physical resource.
3. The method of claim 1 wherein the index value n is received in higher level signaling.
4. The method of claim 3 wherein the higher level signaling is radio resource control (RRC) signaling.
5. The method of claim 1, wherein the specific SRI subframe offset and the index value n enable the UE to determine a unique combination, wherein an SRI resource indexed by n is located in a physical uplink control channel (PUCCH) resource block (RB) number wherein the PUCCH RB number is ?n/NSRI SFRBNSRI?;
a subframe S0+?(n mod NSRI SFRBNSRI)/NSRI SFRB? indicating where an SRI resource is located on a channelization resource indexed by nSRI (SRI resource index)=(n mod NSRI SFRB);
wherein the acronym SFRB means subframe source block;
wherein NSRI SFRB is the SRI multiplexing capacity in one subframe of a RB; and
wherein NSRI is the SRI period expressed in number of subframes, and S0 is the number of a first subframe of an SRI period, and assuming a PUCCH RB indexing starts from an upper edge of the PUCCH down to a lower edge.
6. The method of claim 1, wherein
NSRI SFRB is the SRI multiplexing capacity in one subframe of a RB, given a cyclic shift separation ?shift PUCCH between resources using the same orthogonal covering code,
N
SRI
SFRB
=
{
6
?
?
N
SC
RB
/
?
shift
PUCCH
for
?
?
normal
?
?
cyclic
?
?
prefix
4
?
?
N
SC
RB
/
?
shift
PUCCH
for
?
?
extended
?
?
cyclic
?
?
prefix
,
wherein NSC RB is the number N of sub-carriers (SC) in one resource block (RB).
7. The method of claim 1, wherein resources used for the SRI transmission on PUCCH in a given RB/subframe are identified by the resource index nSRI from which the orthogonal sequence indexes nOC,1 (n s ), nOC,2 (n s ), nOC,3 (n s ) of the block spreading codes 1, 2 and 3 respectively, and a cyclic shift ?(l) are determined according to:
n OC,1 (n s )=(nOC,1 (0) +f 1(ns))mod 3
n OC,2 (n s )=(nOC,2 (0) +f 2(ns))mod 3
n OC,3 (n s )=(nOC,3 (0) +f 3(ns))mod 3
?(l)=(?(0) +f 4(l))mod NSC Rb
where NSC RB=12 is the number of sub-carriers in one resource block (RB) and
n
OC
,
1
(
0
)
=
{
?
(
n
SRI
?
?
mod
?
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
/
N
SC
RB
?
for
?
?
normal
?
?
cyclic
?
?
prefix
2
?
?
(
n
SRI
?
?
mod
?
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
/
N
SC
RB
?
for
?
?
extended
?
?
cyclic
?
?
prefix
?
n
OC
,
2
(
0
)
=
?
(
n
SRI
?
?
mod
?
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
/
N
SC
RB
?
?
n
OC
,
3
(
0
)
=
?
2
?
?
n
SRI
/
N
SRI
SFRB
?
?
(
0
)
=
{
(
(
n
SRI
?
?
mod
?
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
+
?
offset
PUCCH
+
(
n
OC
,
1
(
0
)
?
?
mod
?
?
?
shift
PUCCH
)
)
?
mod
?
?
N
SC
RB
normal
?
?
cp
(
(
n
SRI
?
?
mod
?
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
+
?
offset
PUCCH
+
n
OC
,
2
(
0
)
)
?
mod
?
?
N
SC
RB
extended
?
?
cp
and f1(ns), f2(ns), f3(ns) represent index hopping functions varying per slot and f4(l) represents index hopping function varying per symbol.
8. User equipment (UE) for sending a scheduling request indicator (SRI), comprising:
a transceiver comprising:
a receiver operable to receive:
an index value n; and
a transmitter;
a memory coupled to the transceiver, the memory operable to store:
the index value n from the base station;
a processor coupled to the transceiver and the memory, the processor programmed to:
determine an SRI cycle period;
determine a specific SRI subframe offset; and
determine a unique combination of cyclic shift, reference signal (RS) orthogonal cover, data orthogonal cover, and resource block number to use as a unique physical resource for the SRI in a physical uplink control channel (PUCCH) according to the specific SRI subframe offset and the index value n;
wherein the transmitter is operable to produce and transmit the SRI in a transmission instance allocated for the SRI to the base station when the UE determines that it needs to transmit data or information.
9. The UE of claim 8 wherein the SRI cycle period extends the unique physical resource to a persistent periodic physical resource.
10. The UE claim 8 wherein the index value n is received in higher level signaling.
11. The method of claim 10 wherein the higher level signaling is radio resource control (RRC) signaling.
12. The UE of claim 8, wherein the specific SRI subframe offset and the index value n enable the UE to determine a unique combination, wherein an SRI resource indexed by n is located in a physical uplink control channel (PUCCH) resource block (RB) number wherein the PUCCH RB number is ?n/NSRI SFRBNSRI?;
a subframe S0+?(n mod NSRI SFRBNSRI)/N SRI SFRB? indicating where an SRI resource is located on a channelization resource indexed by nSRI (SRI resource index)=(n mod NSRI SFRB);
wherein the acronym SFRB means subframe source block;
wherein NSRI SFRB is the SRI multiplexing capacity in one subframe of a RB; and
wherein NSRI is the SRI period expressed in number of subframes, and S0 is the number of a first subframe of an SRI period, and assuming a PUCCH RB indexing starts from an upper edge of the PUCCH down to a lower edge.
13. The UE of claim 8, wherein
NSRI SFRB is the SRI multiplexing capacity in one subframe of a RB, given a cyclic shift separation ?shift PUCCH between resources using the same orthogonal covering code,
N
SRI
SFRB
=
{
6
?
?
N
SC
RB
/
?
shift
PUCCH
for
?
?
normal
?
?
cyclic
?
?
prefix
4
?
?
N
SC
RB
/
?
shift
PUCCH
for
?
?
extended
?
?
cyclic
?
?
prefix
.
wherein NSC RB is the number N of sub-carriers (SC) in one resource block (RB).
14. The UE of claim 8, wherein resources used for the SRI transmission on PUCCH in a given RB/subframe are identified by the resource index nSRI, from which the orthogonal sequence indexes nOC,1 (n s ), nOC,2 (n s ), nOC,3 (n s ) of the block spreading codes 1, 2 and 3 respectively, and a cyclic shift ?(l) are determined according to:
n OC,1 (n s )=(nOC,1 (0) +f 1(ns))mod 3
n OC,2 (n s )=(nOC,2 (0) +f 2(ns))mod 3
n OC,3 (n s )=(nOC,3 (0) +f 3(ns))mod 3
?(l)=(?(0) +f 4(l))mod NSC Rb
where NSC RB=12 is the number of sub-carriers in one resource block (RB) and
n
OC
,
1
(
0
)
=
{
?
(
n
SRI
?
mod
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
/
N
SC
RB
?
for
?
?
normal
?
?
cyclic
?
?
prefix
2
?
?
(
n
SRI
?
mod
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
/
N
SC
RB
?
for
?
?
extended
?
?
cyclic
?
?
prefix
?
?
?
n
OC
,
2
(
0
)
=
?
(
n
SRI
?
mod
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
/
N
SC
RB
?
?
?
?
n
OC
,
3
(
0
)
=
?
2
?
n
SRI
/
N
SRI
SFRB
?
?
?
?
(
0
)
=
{
(
(
n
SRI
?
mod
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
+
?
offset
PUCCH
+
(
n
OC
,
1
(
0
)
?
mod
?
?
?
shift
PUCCH
)
)
?
mod
?
?
N
SC
RB
normal
?
?
cp
(
(
n
SRI
?
mod
?
(
N
SRI
SFRB
/
2
)
)
?
?
shift
PUCCH
+
?
offset
PUCCH
+
n
OC
,
2
(
0
)
)
?
modN
SC
RB
extended
?
?
cp
and f1(ns), f2(ns), f3(ns) represent index hopping fuctions varying per slot and f4(l) represent index hopping function varying per symbol.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.