# US 12,003,449 B2 · Communication node of a reference signal and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,449 B2 - Document ID: US12003449B2 - Status: Granted - Kind: B2 - Application number: 17/883,735 - Filed: 2022-08-09 - Published: 2022-12-01 - Granted: 2024-06-04 - Earliest claimed: 2017-12-08 - Assignees: Zte Corporation - Applicants: Zte Corporation - Inventors: Yuxin Wang; Zhaohua Lu; Yu Ngok Li; Chuangxin Jiang - Web page: https://patentgrep.com/patent/US12003449B2 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04B 1/713: using frequency hopping - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Provided is a communication node of a reference signal. The communication node includes a processor configured to execute programs stored in a storage device; and the programs, when executed by the processor, perform a method includes: determining a radio resource for a second communication node to send a reference signal; and receiving the reference signal sent by the second communication node using the radio resource. ## Claims ### Claim 1 A communication node of a reference signal, wherein the communication node comprises a processor configured to execute programs stored in a storage device, and the communication node is a first communication node; wherein the programs, when executed by the processor, perform a method comprising: determining a radio resource for a second communication node to send a reference signal; and receiving the reference signal sent by the second communication node using the radio resource, wherein the radio resource comprises a time domain resource; wherein determining the radio resource for the second communication node to send the reference signal comprises: determining, by the first communication node, the time domain resource according to following parameters: a period of the reference signal, a slot offset of the reference signal, a system frame number, a slot index within a frame, a quantity of slots in one subframe, and a quantity of slots in one system frame; wherein the time domain resource satisfies following relationship: 10·nf·Nslotsubframe,μ+ns,fμ−Toffset)mod TSRS=0; wherein ns,fμ∈{0, . . . ,Nslotframe,μ−1}, ns,fμ is the slot index within a frame, nf is the system frame number, Nslotsubframe,μ is the quantity of slots in one subframe, Nslotframe,μ is the quantity of slots in one system frame, Toffset is the slot offset of the reference signal, and TSRS is the period of the reference signal; and wherein the reference signal is an uplink sounding reference signal. ### Claim 2 (depends on 1) The communication node of claim 1, wherein in response to the parameters comprise the period of the reference signal and the slot offset of the reference signal, relations between the period of the reference signal and the slot offset of the reference signal comprise at least one of: when the period of the reference signal is 1, the slot offset of the reference signal is empty; when the period of the reference signal is 2, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 1; when the period of the reference signal is 4, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 3; when the period of the reference signal is 5, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 4; when the period of the reference signal is 8, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 7; when the period of the reference signal is 10, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 9; when the period of the reference signal is 16, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 15; when the period of the reference signal is 20, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 19; when the period of the reference signal is 32, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 31; when the period of the reference signal is 40, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 39; when the period of the reference signal is 64, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 63; when the period of the reference signal is 80, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 79; when the period of the reference signal is 160, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 159; when the period of the reference signal is 320, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 319; when the period of the reference signal is 640, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 639; when the period of the reference signal is 1280, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 1279; or when the period of the reference signal is 2560, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 2559. ### Claim 3 (depends on 1) The communication node of claim 1, wherein a value of the period of the reference signal comprises at least one of: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, or 2560. ### Claim 4 (depends on 1) The communication node of claim 1, wherein the period of the reference signal and the slot offset of the reference signal have a unit of slots or milliseconds. ### Claim 5 (depends on 1) The communication node of claim 1, wherein the radio resource comprises a frequency domain resource; wherein determining the radio resource for the second communication node to send the reference signal comprises: determining a frequency domain position of the reference signal according to a quantity or number of the uplink sounding reference signal to be sent in time domain, and determining the frequency domain resource according to the frequency domain position. ### Claim 6 (depends on 5) The communication node of claim 5, further comprising: determining, by the first communication node, the quantity or number of the reference signal to be sent in time domain in at least one of following manners: in response to enabling intra-slot frequency hopping of the reference signal and disabling inter-slot frequency hopping of the reference signal, nSRS=└i/R┘, wherein i=0, . . . , N−1. in response to enabling the inter-slot frequency hopping of the reference signal and disabling the intra-slot frequency hopping of the reference signal, n SRS = ⌊ ( n f · N slot frame , μ + n s , f u ) · 1 T SRS ⌋ ; or in response to enabling the intra-slot frequency hopping of the reference signal and enabling the inter-slot frequency hopping of the reference signal, n SRS = ⌊ ( n f · N slot frame , μ + n s , f u ) · N R · 1 T SRS ⌋ + ⌊ i / R ⌋ ; wherein N is a quantity of time domain symbols for sending the reference signal and configured within a slot, R is a quantity of time domain symbols repeated within the slot or a quantity of time domain symbols of the reference signal occupying a same frequency domain position within the slot, nSRS is the quantity or number of the uplink sounding reference signal to be sent in time domain, and i is an index or number of a time domain symbol for sending the reference signal within the slot. ### Claim 7 (depends on 5) The communication node of claim 5, wherein the quantity or number of the uplink sounding reference signal to be sent in time domain is determined according to a following formula: n SRS = α · ⌊ ( n f · N slot frame , μ + n s , f u ) · N R · 1 T SRS ⌋ + ⌊ i / R ⌋ ; wherein a value of α is 0 or 1, N is a quantity of time domain symbols for sending the reference signal and configured within a slot, R is a quantity of time domain symbols repeated within the slot or a quantity of time domain symbols of the reference signal occupying a same frequency domain position within the slot, nSRS is the quantity or number of the uplink sounding reference signal to be sent in time domain, and i is an index or number of a time domain symbol for sending the reference signal within the slot. ### Claim 8 A communication node of a reference signal, wherein the communication node comprises a processor configured to execute programs stored in a storage device, and the communication node is a second communication node; wherein the programs, when executed by the processor, perform a method comprising: determining a radio resource for sending a reference signal; and sending the reference signal using the radio resource to a first communication node, wherein the radio resource comprises a time domain resource; wherein determining the radio resource for sending the reference signal comprises: determining, by the second communication node, the time domain resource according to following parameters: a period of the reference signal, a slot offset of the reference signal, a system frame number, a slot index within a frame, a quantity of slots in one subframe, and a quantity of slots in one system frame; wherein the time domain resource satisfies following relationship: 10·nf·Nslotsubframe,μ+ns,fμ−Toffset) mod TSRS=0; wherein ns,fμ∈{0, . . . ,Nslotframe,μ−1}, ns,fμ is the slot index within a frame, nf is the system frame number, Nslotsubframe,μ is the quantity of slots in one subframe, Nslotframe,μ is the quantity of slots in one system frame, Toffset is the slot offset of the reference signal, and TSRS is the period of the reference signal; and wherein the reference signal is an uplink sounding reference signal. ### Claim 9 (depends on 8) The communication node of claim 8, wherein in response to the parameters comprise the period of the reference signal and the slot offset of the reference signal, relations between the period of the reference signal and the slot offset of the reference signal comprise at least one of: when the period of the reference signal is 1, the slot offset of the reference signal is empty; when the period of the reference signal is 2, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 1; when the period of the reference signal is 4, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 3; when the period of the reference signal is 5, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 4; when the period of the reference signal is 8, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 7; when the period of the reference signal is 10, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 9; when the period of the reference signal is 16, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 15; when the period of the reference signal is 20, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 19; when the period of the reference signal is 32, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 31; when the period of the reference signal is 40, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 39; when the period of the reference signal is 64, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 63; when the period of the reference signal is 80, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 79; when the period of the reference signal is 160, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 159; when the period of the reference signal is 320, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 319; when the period of the reference signal is 640, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 639; when the period of the reference signal is 1280, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 1279; or when the period of the reference signal is 2560, the slot offset of the reference signal is an integer greater than or equal to 0 and less than or equal to 2559. ### Claim 10 (depends on 8) The communication node of claim 8, wherein a value of the period of the reference signal comprises at least one of: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048 or 2560. ### Claim 11 (depends on 8) The communication node of claim 8, wherein the period of the reference signal and the slot offset of the reference signal have a unit of slots or milliseconds. ### Claim 12 (depends on 8) The communication node of claim 8, wherein the radio resource comprises a frequency domain resource; wherein determining the radio resource for sending the reference signal comprises: determining a frequency domain position of the reference signal according to a quantity or number of the uplink sounding reference signal to be sent in time domain, and determining the frequency domain resource according to the frequency domain position. ### Claim 13 (depends on 12) The communication node of claim 12, wherein the quantity or number of the uplink sounding reference signal to be sent in time domain is determined based on at least one of following parameters: a slot index within a frame, a system frame number, a period of the reference signal, a slot offset of the reference signal, a quantity of slots in one subframe, a quantity of slots in one system frame, a quantity of time domain symbols for sending the reference signal within a slot, a quantity of time domain symbols repeated within the slot or a quantity of time domain symbols of the reference signal occupying a same frequency domain position within the slot, or an index or number of a time domain symbol for sending the reference signal within the slot. ### Claim 14 (depends on 12) The communication node of claim 12, further comprising: determining, by the second communication node, the quantity or number of the reference signal to be sent in time domain in at least one of following manners: in response to enabling intra-slot frequency hopping of the reference signal and disabling inter-slot frequency hopping of the reference signal, nSRS=└i/R┘, wherein i=0, . . . , N−1; in response to enabling the inter-slot frequency hopping of the reference signal and disabling the intra-slot frequency hopping of the reference signal, n SRS = ⌊ ( n f · N slot frame , μ + n s , f u ) · 1 T SRS ⌋ ; or in response to enabling the intra-slot frequency hopping of the reference signal and enabling the inter-slot frequency hopping of the reference signal, n SRS = ⌊ ( n f · N slot frame , μ + n s , f u ) · N R · 1 T SRS ⌋ + ⌊ i / R ⌋ ; wherein N is a quantity of time domain symbols for sending the reference signal and configured within a slot, R is a quantity of time domain symbols repeated within the slot or a quantity of time domain symbols of the reference signal occupying a same frequency domain position within the slot, nSRS is the quantity or number of the uplink sounding reference signal to be sent in time domain, and i is an index or number of a time domain symbol for sending the reference signal within the slot. ### Claim 15 (depends on 12) The communication node of claim 12, wherein the quantity or number of the uplink sounding reference signal to be sent in time domain is obtained according to one of following formulas: n SRS = α · ⌊ ( n f · N slot frame , μ + n s , f u ) · N R · 1 T SRS ⌋ + ⌊ i / R ⌋ ; wherein a value of α is 0 or 1, N is a quantity of time domain symbols for sending the reference signal and configured within a slot, R is a quantity of time domain symbols repeated within the slot or a quantity of time domain symbols of the reference signal occupying a same frequency domain position within the slot, nSRS is the quantity or number of the uplink sounding reference signal to be sent in time domain, and i is an index or number of a time domain symbol for sending the reference signal within the slot. ### Claim 16 A non-transitory storage medium, comprising stored programs, wherein the programs, when executed, perform a method comprising: determining a radio resource for a communication node to send a reference signal; and receiving the reference signal sent by the communication node using the radio resource; wherein the radio resource comprises a time domain resource; wherein determining the radio resource for a second communication node to send the reference signal comprises: determining, by a first communication node, the time domain resource according to following parameters: a period of the reference signal, a slot offset of the reference signal, a system frame number, a slot index within a frame, a quantity of slots in one subframe, and a quantity of slots in one system frame; wherein the time domain resource satisfies following relationship: 10·nf·Nslotsubframe,μ+ns,fμ−Toffset) mod TSRS=0 ; wherein ns,fμ∈{0, . . . , Nslotframe,μ−1}, ns,fμ is the slot index within a frame, nf is the system frame number, Nslotsubframe,μ is the quantity of slots in one subframe, Nslotframe,μ is the quantity of slots in one system frame, Toffset is the slot offset of the reference signal, and TSRS is the period of the reference signal; and wherein the reference signal is an uplink sounding reference signal.