US2020045688A1PendingUtilityA1
Feedback information sending apparatus and method, and feedback information receiving apparatus and method
Est. expiryJul 29, 2035(~9 yrs left)· nominal 20-yr term from priority
H04L 5/0094H04L 5/0044H04L 5/0055H04L 1/1861H04W 16/14H04L 2001/0093H04L 1/18H04L 1/1671H04L 1/1628H04W 72/51H04W 72/23H04L 5/005H04W 72/0446H04L 5/0053H04L 5/0037H04W 72/042H04W 72/048
56
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
A method comprises: determining an uplink shared resource and a demodulation reference signal (DM-RS) that are of user equipment (UE); sending uplink data by using the uplink shared resource, wherein the uplink data comprises an identifier and the DM-RS that are of the UE; calculating an agreed feedback location, wherein the agreed feedback location is obtained according to a resource location of the uplink shared resource and the DM-RS; calculating an offset of the UE, wherein the offset of the UE is obtained according to the identifier of the UE; and receiving acknowledgement information (ACK) at a resource location of a downlink resource, wherein the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset. According to the method, so that each UE is clear about whether the uplink data of the UE is successfully sent.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A base station, wherein the base station comprises a processor, a memory, and a transceiver, the memory is configured to store at least one instruction, and as configured, the instruction is executed by the processor;
the processor is configured to allocate a same uplink shared resource and a same demodulation reference signal (DM-RS) to m user equipments (UEs), wherein m≥2; the processor is further configured to control the transceiver to receive uplink data by using the DM-RS, wherein the uplink data comprises an identifier of UE, identifiers of different UEs represent the different UEs, and the UE represented by the identifier of the UE is at least one of the m UEs; the processor is further configured to calculate an agreed feedback location, wherein the agreed feedback location is obtained according to a resource location of the uplink shared resource and the DM-RS; the processor is further configured to calculate an offset of the UE, wherein the offset of the UE is obtained according to the identifier of the UE; and the processor is further configured to control the transceiver to send acknowledgement information (ACK) at a resource location of a downlink resource, wherein the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
2 . The base station according to claim 1 , wherein
the processor is configured to: perform a preset arithmetic operation on the identifier of the UE, and use a result of the preset arithmetic operation as the offset corresponding to the UE.
3 . The base station according to claim 2 , wherein the resource location of the downlink resource satisfying the following formulas:
n PHICH group =( I PRB_RA +n DMRS )mod N PHICH group +I PHICH N PHICH group +f ( C −RNTI), and
n PHICH seq =(└ I PRB_RA /N PHICH group ┘+n DMRS )mod 2 N SF PHICH +f ( C −RNTI), wherein
n PHICH group is used to identify a group number of a group to which the downlink resource belongs on a physical HARQ indicator channel (PHICH); n PHICH seq is used to identify an orthogonal sequence number of the downlink resource in the group on the PHICH; n DMRS is used to identify a DM-RS sequence that is last indicated by a physical downlink control channel PDCCH to the UE; N PHICH group is used to identify a quantity of groups on the PHICH; N SF PHICH is a spreading factor used for modulating the PHICH; and f(C−RNTI) is the offset corresponding to the UE, wherein
I
PHICH
=
{
1
When
an
uplink
-
downlink
configuration
in
a
TDD
mode
is
0
and
the
uplink
data
is
sent
in
a
subframe
4
or
subframe
9
on
a
physical
uplink
shared
channel
PUSCH
,
and
0
Otherwise
I
PRB
_
RA
=
{
I
PRB
_
RA
lowest
_
index
,
When
the
uplink
shared
resource
is
the
first
TB
transmitted
on
the
PUSCH
I
PRB
_
RA
lowest
_
index
+
1
,
When
the
uplink
shared
resource
is
the
second
TB
transmitted
on
the
PUSCH
,
wherein
I PRB_RA lowest_index is used to identify a lowest physical resource block PRB index corresponding to a first timeslot in the PUSCH transmission process.
4 . The base station according to claim 3 , wherein
the processor is configured to calculate the offset of the UE, wherein
f ( C −RNTI)=( C −RNTI) % M , and M is a positive integer.
5 . Device, wherein the device comprises a processor, and a memory, the memory is configured to store at least one instruction, and as configured, the instruction is executed by the processor;
the processor is configured to determine an uplink shared resource and a demodulation reference signal (DM-RS) that are of the device; the processor is further configured to control a transceiver to send uplink data by using the uplink shared resource, wherein the uplink data comprises an identifier and the DM-RS that are of the device; the processor is further configured to calculate an agreed feedback location, wherein the agreed feedback location is obtained according to a resource location of the uplink shared resource and the DM-RS; the processor is further configured to calculate an offset of the device, wherein the offset of the device is obtained according to the identifier of the device; and the processor is further configured to control the transceiver to receive acknowledgement information (ACK) at a resource location of a downlink resource, wherein the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
6 . The device according to claim 5 , wherein the processor is configured to:
perform a preset arithmetic operation on the identifier of the device, and use a result of the preset arithmetic operation as the offset corresponding to the device.
7 . The device according to claim 6 , wherein the resource location of the downlink resource satisfying the following formulas:
n PHICH group =( I PRB_RA +n DMRS )mod N PHICH group +I PHICH N PHICH group +f ( C −RNTI), and
n PHICH seq =(└ I PRB_RA /N PHICH group ┘+n DMRS )mod 2 N SF PHICH +f ( C −RNTI), wherein
n PHICH group is used to identify a group number of a group to which the downlink resource belongs on a physical HARQ indicator channel (PHICH); n PHICH seq is used to identify an orthogonal sequence number of the downlink resource in the group on the PHICH; n DMRS is used to identify a DM-RS sequence that is last indicated by a physical downlink control channel PDCCH to the device; N PHICH group is used to identify a quantity of groups on the PHICH; N SF PHICH is a spreading factor used for modulating the PHICH; and f(C−RNTI) is the offset corresponding to the device, wherein
I
PHICH
=
{
1
When
an
uplink
-
downlink
configuration
in
a
TDD
mode
is
0
and
the
uplink
data
is
sent
in
a
subframe
4
or
subframe
9
on
a
physical
uplink
shared
channel
PUSCH
,
and
0
Otherwise
I
PRB
_
RA
=
{
I
PRB
_
RA
lowest
_
index
,
When
the
uplink
shared
resource
is
the
first
TB
transmitted
on
the
PUSCH
I
PRB
_
RA
lowest
_
index
+
1
,
When
the
uplink
shared
resource
is
the
second
TB
transmitted
on
the
PUSCH
,
wherein
I PRB_RA lowest_index is used to identify a lowest physical resource block PRB index corresponding to a first timeslot in the PUSCH transmission process.
8 . The device according to claim 7 , wherein
the processor is configured to calculate the offset of the device, wherein
f ( C −RNTI)=( C −RNTI) % M , and M is a positive integer.
9 . A method, wherein the method comprises:
determining an uplink shared resource and a demodulation reference signal (DM-RS) that are of user equipment (UE); sending uplink data by using the uplink shared resource, wherein the uplink data comprises an identifier and the DM-RS that are of the UE; calculating an agreed feedback location, wherein the agreed feedback location is obtained according to a resource location of the uplink shared resource and the DM-RS; calculating an offset of the UE, wherein the offset of the UE is obtained according to the identifier of the UE; and receiving acknowledgement information (ACK) at a resource location of a downlink resource, wherein the resource location of the downlink resource is indicated by a combination of the agreed feedback location and the offset.
10 . The method according to claim 9 , wherein the calculating an offset of the UE comprises:
performing a preset arithmetic operation on the identifier of the UE, and using a result of the preset arithmetic operation as the offset corresponding to the UE.
11 . The method according to claim 10 , wherein the resource location of the downlink resource satisfying the following formulas:
n PHICH group =( I PRB_RA +n DMRS )mod N PHICH group +I PHICH N PHICH group +f ( C −RNTI), and
n PHICH seq =(└ I PRB_RA /N PHICH group ┘+n DMRS )mod 2 N SF PHICH +f ( C −RNTI), wherein
n PHICH group is used to identify a group number of a group to which the downlink resource belongs on a physical HARQ indicator channel (PHICH); n PHICH seq is used to identify an orthogonal sequence number of the downlink resource in the group on the PHICH; n DMRS is used to identify a DM-RS sequence that is last indicated by a physical downlink control channel PDCCH to the UE; N PHICH group is used to identify a quantity of groups on the PHICH; N SF PHICH is a spreading factor used for modulating the PHICH; and f(C−RNTI) is the offset corresponding to the UE, wherein
I
PHICH
=
{
1
When
an
uplink
-
downlink
configuration
in
a
TDD
mode
is
0
and
the
uplink
data
is
sent
in
a
subframe
4
or
subframe
9
on
a
physical
uplink
shared
channel
PUSCH
,
and
0
Otherwise
I
PRB
_
RA
=
{
I
PRB
_
RA
lowest
_
index
,
When
the
uplink
shared
resource
is
the
first
TB
transmitted
on
the
PUSCH
I
PRB
_
RA
lowest
_
index
+
1
,
When
the
uplink
shared
resource
is
the
second
TB
transmitted
on
the
PUSCH
,
wherein
I PRB_RA lowest_index is used to identify a lowest physical resource block PRB index corresponding to a first timeslot in the PUSCH transmission process.
12 . The method according to claim 11 , wherein the performing a preset arithmetic operation on the identifier of the UE, and using a result of the preset arithmetic operation as the offset corresponding to the UE comprises:
calculating the offset of the UE, wherein
f ( C −RNTI)=( C −RNTI) % M , and M is a positive integer.Join the waitlist — get patent alerts
Track US2020045688A1 — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.