Abstract
A user equipment (UE) is configured to communicate with a plurality of base stations in a wireless network. The UE includes a processor that receive a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH). The processor also receives UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value c init. The downlink grant includes a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-IDcell out of two candidate pairs the pair of values to be used for determining the initialization value cinit for the UE-RS.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
| 5G | 26/04/2018 | ISLD-201804-022 | SAMSUNG | Yes | Basis Patent | ||||
| 4G | 19/10/2018 | ISLD-201810-043 | SAMSUNG | Yes | Basis Patent | ||||
Specification Information
Specification Information
Technologies
Family Information
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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||
| US2013034064A1 | 5G | 26/04/2018 | ISLD-201804-022 | SAMSUNG | Yes | Basis Patent | ||||
| US2013034064A1 | 4G | 19/10/2018 | ISLD-201810-043 | SAMSUNG | Yes | Basis Patent | ||||
| CN103891232A | 5G | 26/04/2018 | ISLD-201804-022 | SAMSUNG | No | Family Member | ||||
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| CN103891232B | 5G | 26/04/2018 | ISLD-201804-022 | SAMSUNG | No | Family Member | ||||
| CN103891232B | 4G | 19/10/2018 | ISLD-201810-043 | SAMSUNG | No | Family Member | ||||
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| EP2740248A4 | 4G | 19/10/2018 | ISLD-201810-043 | SAMSUNG | No | Family Member | ||||
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| JP2014527750A | 4G | 19/10/2018 | ISLD-201810-043 | SAMSUNG | No | Family Member | ||||
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| WO2013022244A2 | 5G | 26/04/2018 | ISLD-201804-022 | SAMSUNG | No | Family Member | ||||
| WO2013022244A2 | 4G | 19/10/2018 | ISLD-201810-043 | SAMSUNG | No | Family Member | ||||
| WO2013022244A3 | 5G | 26/04/2018 | ISLD-201804-022 | SAMSUNG | No | Family Member | ||||
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Resource configuration Scheduling
Product
Base Station (eNB/gNB)User Equipment (UE/Terminal)
Use Cases
Wireless communication
Services
Transmitting/receiving data in downlink
Claim
1. For use in a user equipment (UE) configured to communicate with a plurality of base stations in a wireless network, a method comprising:
receiving a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH); and
receiving UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value cinit,
wherein the downlink grant comprises a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-ID cell out of two candidate pairs, the pair of values to be used for determining the initialization value cinit for the UE-RS,
wherein cinit is determined according to the equation
c init=(?n s/2?+1)�(2N v-ID cell+1)�216 +n SCID
where ns is a slot number.
2. The method of claim 1, wherein the SCID information field in the downlink grant replaces a SCID field in a standard 3GPP LTE DCI format 2B or DCI format 2C downlink grant.
3. The method of claim 1, wherein the two candidate pairs of values are associated with two radio resource control (RRC)-configured values, RRC_SCID0 and RRC_SCID1, wherein each of RRC_SCID0 and RRC_SCID1 comprises a pair of values for (Nv-ID cell, nSCID).
4. The method of claim 1, wherein the two candidate pairs of values for Nv-ID cell, nSCID) comprise (Nv-ID,0 cell, 0) and (Nv-ID,1 cell, 1), wherein Nv-ID,0 cell and Nv-ID,1 cell are RRC-configured.
5. The method of claim 1, further comprising:
transmitting a hybrid automatic repeat request acknowledgement signal (HARQ-ACK) in a physical uplink channel (PUCCH) selected among a plurality of PUCCHs, wherein the plurality of PUCCHs are partitioned into a plurality of zones, wherein a first of the zones is associated with a first UE-specific uplink reference signal (UL RS) base sequence and a second of the zones is associated with a second UE-specific UL RS base sequence.
6. The method of claim 5, wherein the first PUCCH zone is indicated by a first value of the SCID and the second PUCCH zone is indicated by a second value of the SCID.
7. The method of claim 5, wherein the index of the PUCCH for the HARQ-ACK is determined according to the equation
n PUCCH (1) =n CCE +n offset +N PUCCH (1)
where NPUCCH (1) is RRC configured, nCCE is a smallest control channel element (CCE) number of the PDCCH, and noffset is an offset value selected among a plurality of predetermined candidate values.
8. The method of claim 7, wherein a first of the plurality of predetermined candidate values is indicated by a first value of the SCID and a second of the plurality of predetermined candidate values is indicated by a second value of the SCID.
9. The method of claim 7, wherein the plurality of predetermined candidate values are RRC configured.
10. A user equipment (UE) configured to communicate with a plurality of base stations in a wireless network, the user equipment comprising:
a processor configured to:
receive a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH); and
receive UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value cinit,
wherein the downlink grant comprises a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-ID cell out of two candidate pairs, the pair of values to be used for determining the initialization value cinit for the UE-RS,
wherein cinit is determined according to the equation
c init=(?n s/2?+1)�(2N v-ID cell+1)�216 +n SCID
where ns is a slot number.
11. The UE of claim 10, wherein the SCID information field in the downlink grant replaces a SCID field in a standard 3GPP LTE DCI format 2B or DCI format 2C downlink grant.
12. The UE of claim 10, wherein the two candidate pairs of values are associated with two radio resource control (RRC)-configured values, RRC_SCID0 and RRC_SCID1, wherein each of RRC_SCID0 and RRC_SCID1 comprises a pair of values for (Nv-ID cell, nSCID).
13. The UE of claim 10, wherein the two candidate pairs of values for (Nv-ID cell, nSCID) comprise (Nv-ID,0 cell, 0), and (Nv-ID,1 cell, 1), wherein Nv-ID,0 cell and Nv-ID,1 cell are RRC-configured.
14. The UE of claim 10, the processor further configured to:
transmit a hybrid automatic repeat request acknowledgement signal (HARQ-ACK) in a physical uplink channel (PUCCH) selected among a plurality of PUCCHs, wherein the plurality of PUCCHs are partitioned into a plurality of zones, wherein a first of the zones is associated with a first UE-specific uplink reference signal (UL RS) base sequence and a second of the zones is associated with a second UE-specific UL RS base sequence.
15. The UE of claim 14, wherein the first PUCCH zone is indicated by a first value of the SCID and the second PUCCH zone is indicated by a second value of the SCID.
16. The UE of claim 14, wherein the index of the PUCCH for the HARQ-ACK is determined according to the equation
n PUCCH (1) =n CCE +n offset +N PUCCH (1)
where NPUCCH (1) is RRC configured, nCCE is a smallest control channel element (CCE) number of the PDCCH, and noffset is an offset value selected among a plurality of predetermined candidate values.
17. The UE of claim 16, wherein a first of the plurality of predetermined candidate values is indicated by a first value of the SCID and a second of the plurality of predetermined candidate values is indicated by a second value of the SCID.
18. The UE of claim 16, wherein the plurality of predetermined candidate values are RRC configured.
19. A base station configured for communication with a plurality of user equipments (UEs), the base station comprising:
a processor configured to:
transmit a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH); and
transmit UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value cinit,
wherein the downlink grant comprises a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-ID cell out of two candidate pairs, the pair of values to be used for determining the initialization value cinit for the UE-RS,
wherein cinit is determined according to the equation
c init=(?n s/2?+1)�(2Nv-ID cell+1)�216 +n SCID
where ns is a slot number.
20. The base station of claim 19, wherein the SCID information field in the downlink grant replaces a SCID field in a standard 3GPP LTE DCI format 2B or DCI format 2C downlink grant.
21. The base station of claim 19, wherein the two candidate pairs of values are associated with two radio resource control (RRC)-configured values, RRC_SCID0 and RRC_SCID1, wherein each of RRC_SCID0 and RRC_SCID1 comprises a pair of values for (Nv-ID cell, nSCID).
22. The base station of claim 19, wherein the two candidate pairs of values for cell (Nv-ID cell, nSCID) comprise (Nv-ID,0 cell, 0) and (Nv-ID,1 cell, 1), wherein Nv-ID,0 cell and Nv-ID,1 cell are RRC-configured.
23. The base station of claim 19, the processor further configured to:
receive a hybrid automatic repeat request acknowledgement signal (HARQ-ACK) in a physical uplink channel (PUCCH) selected among a plurality of PUCCHs, wherein the plurality of PUCCHs are partitioned into a plurality of zones, wherein a first of the zones is associated with a first UE-specific uplink reference signal (UL RS) base sequence and a second of the zones is associated with a second UE-specific UL RS base sequence.
24. The base station of claim 23, wherein the first PUCCH zone is indicated by a first value of the SCID and the second PUCCH zone is indicated by a second value of the SCID.
25. The base station of claim 23, wherein the index of the PUCCH for the HARQ-ACK is determined according to the equation
n PUCCH (1) =n CCE +n offset +N PUCCH (1)
where NPUCCH (1) is RRC configured, nCCE is a smallest control channel element (CCE) number of the PDCCH, and noffset is an offset value selected among a plurality of predetermined candidate values.
26. The base station of claim 25, wherein a first of the plurality of predetermined candidate values is indicated by a first value of the SCID and a second of the plurality of predetermined candidate values is indicated by a second value of the SCID.
27. The base station of claim 25, wherein the plurality of predetermined candidate values are RRC configured.
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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.