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US 11,601,178 B2Granted
Channel state information transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsDi Zhang, Kunpeng Liu
Life of this patent
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Abstract
This application provides a method which includes: receiving, by a terminal, N reference signal groups, where each of the N reference signal groups includes at least two reference signals that are simultaneously received; and sending indication information used to indicate channel state information of at least one reference signal in each of K reference signal groups. Therefore, the terminal can feed back the channel state information of the reference signal in a scenario in which a plurality of reference signals can be simultaneously received, so that a network device selects a beam from a plurality of beams that can be simultaneously sent to send data.
Claims17
A method, comprising:
- obtaining N reference signal groups, wherein each of the N reference signal groups comprises at least two reference signals, the at least two reference signals are reference signals that are simultaneously received, N≥1, and N is an integer;
- and
- sending indication information, wherein the indication information indicates channel state information of at least one reference signal in each of K reference signal groups, the K reference signal groups are at least one of the N reference signal groups, 1≤K≤N, and K is an integer,
- wherein the channel state information of the at least one reference signal in a ith reference signal group in the K reference signal groups is channel state information of Li reference signals, 1≤i≤K, 1≤Li≤M, i, Li, and M are all integers, M is a quantity of all reference signals comprised in the ith reference signal group, and the channel state information of the Li reference signals comprises at least one of the following content:
- X reference signal resource indexes, Y pieces of reference signal received quality (RSRQ), Z signal to interference plus noise ratios (SINRs), or a quantity of reference signals, wherein X≤Li, and Y≤Li, and Z≤Li.
2 more elements
A method, comprising:
- sending N reference signal groups, wherein each of the N reference signal groups comprises at least two reference signals, the at least two reference signals are reference signals that are simultaneously received, N≥1, and N is an integer;
- and
- receiving indication information, wherein the indication information indicates channel state information of at least one reference signal in each of K reference signal groups, the K reference signal groups are at least one of the N reference signal groups, 1≤K≤N, and K is an integer,
- wherein the at least one reference signal in a ith reference signal group in the K reference signal groups is Li reference signals, 1≤i≤K, 1≤Li≤M, i, Li, and M are all integers, M is a quantity of all reference signals comprised in the ith reference signal group, and channel state information of the Li reference signals comprises at least one of the following content:
- X reference signal resource indexes, Y pieces of reference signal received quality (RSRQ), Z signal to interference plus noise ratios (SINRs), or a quantity of reference signals, wherein X≤Li, and Y≤Li, and Z≤Li.
2 more elements
An apparatus, comprising:
- a transceiver, configured to receive N reference signal groups, wherein each of the N reference signal groups comprises at least two reference signals, the at least two reference signals are reference signals that are simultaneously received, N≥1, and N is an integer, wherein
- the transceiver is configured to send indication information, wherein the indication information indicates channel state information of at least one reference signal in each of K reference signal groups, the K reference signal groups are at least one of the N reference signal groups, 1≤K≤N, and K is an integer,
- wherein the at least one reference signal in a ith reference signal group in the K reference signal groups is Li reference signals, 1≤i≤K, 1≤Li≤M, i, Li, and M are all integers, M is a quantity of all reference signals comprised in the ith reference signal group, and channel state information of the Li reference signals comprises at least one of the following content:
- X reference signal resource indexes, Y pieces of reference signal received quality (RSRQ), Z signal to interference plus noise ratios (SINRs) or a quantity of reference signals, wherein X≤Li, and Y≤Li, and Z≤Li.
1 more element
Dependencies are inferred from the claim text.