Sounding reference signal sequence design
Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence. The second circuitry may be operable to process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies. The second circuitry may also be operable to process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies. The second SRS sequence may comprise at least a first block that overlaps the first set of subcarrier frequencies and a second block that does not overlap the first set of subcarrier frequencies.
1. A base station (BS) operable to communicate with a first User Equipment (UE) and a second UE on a wireless network, comprising:
one or more processors configured to:
determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence, wherein at least one of the first SRS sequence or the second SRS sequence is a truncated portion of a sequence associated with a system wide bandwidth;
process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies; and
process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies,
wherein the second SRS sequence is allocated across at least a first set of physical resource blocks (PRBs) that overlaps the first set of subcarrier frequencies and a second set of PRBs that does not overlap the first set of subcarrier frequencies, and an interface for receiving the first UL transmission and the second UL transmission via a receive circuitry.
2. The BS of claim 1 , wherein the first SRS sequence and the second SRS sequence are established based on a same Zadoff Chu (ZC) sequence.
3. The BS of claim 1 ,
wherein the first SRS sequence and the first set of PRBs of the second SRS sequence are established based on a first Zadoff Chu (ZC) sequence; and
wherein the second set of PRBs of the second SRS sequence is established based on a second ZC sequence.
4. The BS of claim 1 , wherein the one or more processors are further configured to:
generate a configuration transmission to the first UE comprising one or more parameters of the first SRS sequence; and
generate a configuration transmission to the second UE comprising one or more parameters of the second SRS sequence.
5. The BS of claim 1 , wherein the first SRS sequence and the second SRS sequence are received in a same Orthogonal Frequency Division Multiplexing (OFDM) symbol.
6. The BS of claim 1 , wherein the first set of PRBs associated with the second SRS sequence has a relative phase rotation with respect to the second set of PRBs associated with the second SRS sequence.
7. The BS of claim 1 , wherein the BS is a 5th Generation Evolved Node-B (gNB).
8. A User Equipment (UE) operable to communicate with a base station (BS) on a wireless network, comprising:
one or more processors configured to:
receive, from the BS, an indication associated with a first Sounding Reference Signal (SRS) sequence, wherein the first SRS sequence and a second SRS sequence are each truncated portions of a sequence associated with a system wide bandwidth;
generate a first Uplink (UL) transmission, the first UL transmission incorporating the first SRS sequence over a first set of subcarrier frequencies; and
an interface for sending the first UL transmission to a transmission circuitry,
wherein the second SRS sequence is for simultaneous use by another UE for communication with the BS, the second SRS sequence associated with a second UL transmission comprising at least a first set of physical resource blocks (PRBs) that overlaps the first set of subcarrier frequencies and a second set of PRBs that does not overlap the first set of subcarrier frequencies.
9. The UE of claim 8 , wherein the first SRS sequence and the second SRS sequence are established based on a same Zadoff Chu (ZC) sequence.
10. The UE of claim 8 ,
wherein the first SRS sequence and the first set of PRBs of the second SRS sequence are established based on a first Zadoff Chu (ZC) sequence; and
wherein the second set of PRBs of the second SRS sequence is established based on a second ZC sequence.
11. The UE of claim 8 , wherein the one or more processors are further configured to:
receive, from the BS, and process a configuration transmission comprising one or more parameters of the first SRS sequence.
12. The UE of claim 8 , wherein the first SRS sequence and the second SRS sequence are received in a same Orthogonal Frequency Division Multiplexing (OFDM) symbol.
13. The UE of claim 8 , wherein the first set of PRBs of the second SRS sequence has a relative phase rotation with respect to the second set of PRBs of the second SRS sequence.
14. A method for communication by a User Equipment (UE) with a base station (BS) on a wireless network, the method comprising:
receiving, from the BS, an indication associated with a first Sounding Reference Signal (SRS) sequence, wherein the first SRS sequence and a second SRS sequence are each truncated portions of a sequence associated with a system wide bandwidth;
generating a first Uplink (UL) transmission, the first UL transmission incorporating the first SRS sequence over a first set of subcarrier frequencies; and
sending, via an interface, the first UL transmission to the BS,
wherein the second SRS sequence is for simultaneous use by another UE for communication with the BS, the second SRS sequence associated with a second UL transmission comprising at least a first set of physical resource blocks (PRBs) that overlaps the first set of subcarrier frequencies and a second set of PRBs that does not overlap the first set of subcarrier frequencies.
15. The method of claim 14 , wherein the first SRS sequence and the second SRS sequence are established based on a same Zadoff Chu (ZC) sequence.
16. The method of claim 14 ,
wherein the first SRS sequence and the first set of PRBs of the second SRS sequence are established based on a first Zadoff Chu (ZC) sequence; and
wherein the second set of PRBs of the second SRS sequence is established based on a second ZC sequence.
17. The method of claim 14 , further comprising:
receiving, from the BS, and processing a configuration transmission comprising one or more parameters of the first SRS sequence.
18. The method of claim 14 , wherein the first SRS sequence and the second SRS sequence are received in a same Orthogonal Frequency Division Multiplexing (OFDM) symbol.
19. The method of claim 14 , wherein the first set of PRBs associated with the second SRS sequence has a relative phase rotation with respect to the second set of PRBs associated with the second SRS sequence.
20. The method of claim 14 , wherein the BS is a 5th Generation Evolved Node-B (gNB).