Abstract
A subscriber station for use in a wireless network capable of communicating according to a multicarrier protocol. The subscriber station determines a total average signal level across N subbands where each of subband comprises a plurality of subcarriers. The subscriber station also determines a first average signal level within a first subband. The subscriber station then transmits a channel quality indicator (CQI) feedback message to the wireless network. The CQI feedback message comprises a first data field indicating the total average signal level and a second data field indicating the first average signal level. The first data field may indicate the total average signal level as an absolute value and the second data field may indicate the first average signal level relative to the total average signal level.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 29/01/2008 | ISLD-200804-013 | SAMSUNG | Yes | Basis Patent | ||||
| 4G | 20/09/2009 | ISLD-200909-012 | SAMSUNG | Yes | Basis Patent | ||||
| 5G | 02/05/2018 | ISLD-201805-007 | SAMSUNG | Yes | Basis Patent | ||||
Specification Information
Specification Information
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| US2007026813A1 | 4G | 20/09/2009 | ISLD-200909-012 | SAMSUNG | Yes | Basis Patent | ||||
| US2007026813A1 | 5G | 02/05/2018 | ISLD-201805-007 | SAMSUNG | Yes | Basis Patent | ||||
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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S1
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Technologies
Resource configuration Channel Status Information(CSI) Reporting
Product
User Equipment (UE/Terminal)Base Station (eNB/gNB)Access point
Use Cases
Wireless communication
Services
Multi-carrier wireless communication
Claim
1. A method of transmitting a feedback message by a subscriber station in a wireless network configured to communicate according to a multi-carrier protocol, the method comprising:
determining a first channel quality indicator value indicating channel quality across N subbands and a second channel quality indicator value indicating channel quality within one subband of the N subbands;
generating a feedback message comprising first data and second data, the first data indicating the first channel quality indicator value and the second data representing a value indicating a relative difference between the second channel quality indicator value and the first channel quality indicator value; and
transmitting the feedback message.', 'determining a first channel quality indicator value indicating channel quality across N subbands and a second channel quality indicator value indicating channel quality within one subband of the N subbands;', 'generating a feedback message comprising first data and second data, the first data indicating the first channel quality indicator value and the second data representing a value indicating a relative difference between the second channel quality indicator value and the first channel quality indicator value; and', 'transmitting the feedback message.
2. The method as set forth in claim 1, wherein the first data indicates the first channel quality indicator value using four bits and the second data represents the value indicating the relative difference between the second channel quality indicator value and the first channel quality indicator value using two bits.
3. The method as set forth in claim 1, wherein the first channel quality indicator value is determined based on effective Signal-to-Noise Ratio (SNR), the effective SNR, SNREFF, being calculated using', 'C
=
1
K
·
âx88x91
k
=
1
K
âx81¢
âx81¢
log
âx81¡
(
1
+
S
âx81¢
âx81¢
N
âx81¢
âx81¢
R
k
)
,', 'and', 'SNREFF=2C-1, where K is a total number of subcarriers and SNRK is the SNR of a k-th subcarrier.
4. The method as set forth in claim 1, wherein the subscriber station determines the first channel quality indicator value based on all subcarriers in the N subbands.
5. The method as set forth in claim 1, wherein the subscriber station determines the first channel quality indicator value based on a subset of all subcarriers in the N subbands, the subset including subcarriers from two or more of the N subbands.
6. The method as set forth in claim 1, wherein the subscriber station determines the second channel quality indicator value based on all of subcarriers in the one subband of the N subbands.
7. The method as set forth in claim 1, wherein the subscriber station determines the second channel quality indicator value based on a subset of all subcarriers in the one subband of the N subbands.
8. For use in a base station capable of communicating with a plurality of subscriber stations according to a multi-carrier protocol, wherein the base station transmits in a downlink to the plurality of subscriber stations using N subbands, each of the N subbands comprising a plurality of subcarriers, a method of allocating selected ones of the N subbands in the downlink, the method comprising:
receiving from a first one of the plurality of subscriber stations a feedback message;
identifying in the CQI feedback message first data indicating a first channel quality indicator value determined by the first subscriber station across the N subbands and second data representing a value indicating a relative difference between the first channel quality indicator value and a second channel quality indicator value determined by the first subscriber station within one of the N subbands; and
using the first channel quality indicator value and the second channel quality indicator value to allocate at least one of the N subbands for transmitting in the downlink to the first subscriber station.', 'receiving from a first one of the plurality of subscriber stations a feedback message;', 'identifying in the CQI feedback message first data indicating a first channel quality indicator value determined by the first subscriber station across the N subbands and second data representing a value indicating a relative difference between the first channel quality indicator value and a second channel quality indicator value determined by the first subscriber station within one of the N subbands; and', 'using the first channel quality indicator value and the second channel quality indicator value to allocate at least one of the N subbands for transmitting in the downlink to the first subscriber station.
9. The method as set forth in claim 8, wherein the first data indicates the first channel quality indicator value using four bits and the second data represents the value indicating the relative difference between the second channel quality indicator value and the first channel quality indicator value using two bits
10. The method as set forth in claim 8, wherein the first channel quality indicator value is determined based on effective Signal-to-Noise Ratio (SNR), the effective SNR, SNREFF, being calculated using', 'C
=
1
K
·
âx88x91
k
=
1
K
âx81¢
âx81¢
log
âx81¡
(
1
+
S
âx81¢
âx81¢
N
âx81¢
âx81¢
R
k
)
,', 'and', 'SNREFF=2C-1, where K is a total number of subcarriers and SNRK is the SNR of a k-th subcarrier
11. The method as set forth in claim 8, wherein the first subscriber station determines the first channel quality indicator value based on all subcarriers in the N subbands
12. The method as set forth in claim 8, wherein the first subscriber station determines the first channel quality indicator value based on a subset of all subcarriers in the N subbands, the subset including subcarriers from two or more of the N subbands
13. The method as set forth in claim 8, wherein the first subscriber station determines the second channel quality indicator value based on all subcarriers in the one subband of the N subbands
14. The method as set forth in claim 8, wherein the first subscriber station determines the second channel quality indicator value in the first subband based on a subset of all subcarriers in the one subband of the N subbands
15. The method as set forth in claim 1, wherein the relative difference is a differential offset level
16. The method as set forth in claim 1, wherein the first channel quality indicator value is a wideband channel quality indicator value and the second channel quality indicator value is a subband channel quality indicator value
17. The method as set forth in claim 8, wherein the relative difference is a differential offset level
18. The method as set forth in claim 8, wherein the first channel quality indicator value is a wideband channel quality indicator value and the second channel quality indicator value is a subband channel quality indicator value.']
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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.