Sounding reference signal transmission method, base station, and user equipment
An embodiment of the present invention provides a sounding reference signal (SRS) transmission method, a base station, and a user equipment, the SRS transmission method including: generating SRS configuration information for at least two UEs, such that an SRS of a first type of UE of the at least two UEs is non-orthogonal with an SRS of a second type of UE of the at least two UEs; transmitting the SRS configuration information of the at least two UEs.
1. A base station, comprising:
a generating unit, configured to generate sounding reference signal (SRS) configuration information for at least two UEs, such that an SRS of a first type of UE of the at least two UEs is non-orthogonal with an SRS of a second type of UE of the at least two UEs; and
a transmitting unit, configured to transmit the SRS configuration information of the at least two UEs,
wherein the SRS configuration information includes: interval information indicating a comb number of the SRS.
2. The base station of claim 1 , wherein a bandwidth of the first type of UE is greater than a bandwidth of the second type of UE.
3. The base station of claim 1 , wherein the comb number indicated by the interval information of the first type of UE is different from the comb number indicated by the interval information of the second type of UE.
4. The base station of claim 1 , wherein when a plurality of first type of UE are included in the at least two UEs, SRSs of the respective first type of UE are orthogonal.
5. The base station of claim 1 , wherein when a plurality of second type of UE are included in the at least two UEs, SRSs of the respective second type of UE are orthogonal.
6. The base station of claim 1 , wherein the generating unit generates, according to information of basic blocks, SRS configuration information of any one or more UEs of the at least two UEs, wherein the basic blocks include time-frequency resource units.
7. The base station of claim 6 , wherein the SRS configuration information further includes: a length of the basis blocks and/or the number of the basis blocks.
8. The base station of claim 6 , wherein when SRSs of the first type of UEs and the second type of UEs are all configured according to the basic blocks, a length of a first basis blocks for configuring the SRS of the first type of UE is different from a length of a second basis block for configuring the SRS of the second type of UE; and/or, the number of the first basic blocks is different from the number of the second basic blocks.
9. The base station of claim 1 , wherein the base station further includes: a receiving unit, configured to receive the SRSs of the at least two UEs; an estimating unit configured to carry out channel estimation for the received SRSs of the at least two UEs with a successive interference cancellation method.
10. A User Equipment (UE), comprising:
a receiving unit, configured to receive sounding reference signal (SRS) configuration information transmitted by a base station;
an obtaining unit, configured to obtain an SRS configuration of the UE from the SRS configuration information, wherein an SRS of the UE is non-orthogonal with SRSs of other UEs; and
a transmitting unit, configured to transmit the SRS of the UE according to the SRS configuration information,
wherein the SRS configuration information includes: interval information indicating a comb number of the SRS.
11. A User Equipment (UE), comprising:
a receiving unit, configured to receive sounding reference signal (SRS) configuration information transmitted by a base station, the SRS configuration information including information about basic blocks included in an SRS of the UE; and
a transmitting unit, configured to transmit the SRS of the UE according to the SRS configuration information,
wherein the SRS configuration information includes: interval information indicating a comb number of the SRS.