Comb shift design
AssigneeQUALCOMM Incorporated
InventorsJingchao Bao, Sony Akkarakaran, Tao Luo, Alexandros Manolakos
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Abstract
Disclosed are techniques related to wireless communication. In an aspect, a sequence generating entity factorizes a comb size N into prime factors of N, and generates one or more offset sequences for a reference signal for positioning based on one or more sequence lists associated with the prime factors of N and a number of symbols M over which the reference signal is scheduled.
Claims30
A sequence generating entity, comprising:
- a memory;
- and
- at least one processor communicatively coupled to the memory, the at least one processor configured to:
- factorize a comb size N into prime factors of N, wherein N is the comb size;
- and
- generate one or more offset sequences for a reference signal for positioning based on one or more sequence lists associated with the prime factors of N and a number of symbols M over which the reference signal is scheduled, wherein M is the number of symbols.
A method of wireless communication performed by a sequence generating entity, the method comprising:
- factorizing a comb size N into prime factors of N, wherein N is the comb size;
- and
- generating one or more offset sequences for a reference signal for positioning based on one or more sequence lists associated with the prime factors of N and a number of symbols M over which the reference signal is scheduled, wherein M is the number of symbols.
A method for wireless communication at a base station, comprising:
- identifying a reference signal configuration for transmission of a downlink positioning reference signal (DL-PRS) for positioning to a user equipment (UE), the reference signal configuration providing reference signal resources within at least a first orthogonal frequency division multiplexing (OFDM) symbol, a second OFDM symbol, a third OFDM symbol, a fourth OFDM symbol, a fifth OFDM symbol, a sixth OFDM symbol, a seventh OFDM symbol, an eighth OFDM symbol, a ninth OFDM symbol, a tenth OFDM symbol, an eleventh OFDM symbol, and a twelfth OFDM symbol;
- and
- transmitting to the UE, based at least in part on the reference signal configuration, a first portion of the DL-PRS on a first subset of frequency resources of the first OFDM symbol, a second portion of the DL-PRS on a second subset of frequency resources of the second OFDM symbol, a third portion of the DL-PRS on a third subset of frequency resources of the third OFDM symbol, a fourth portion of the DL-PRS on a fourth subset of frequency resources of the fourth OFDM symbol, a fifth portion of the DL-PRS on a fifth subset of frequency resources of the fifth OFDM symbol, a sixth portion of the DL-PRS on a sixth subset of frequency resources of the sixth OFDM symbol, a seventh portion of the DL-PRS on a seventh subset of frequency resources of the seventh OFDM symbol, an eighth portion of the DL-PRS on an eighth subset of frequency resources of the eighth OFDM symbol, a ninth portion of the DL-PRS on a ninth subset of frequency resources of the ninth OFDM symbol, a tenth portion of the DL-PRS on a tenth subset of frequency resources of the tenth OFDM symbol, an eleventh portion of the DL-PRS on an eleventh subset of frequency resources of the eleventh OFDM symbol, and a twelfth portion of the DL-PRS on a twelfth subset of frequency resources of the twelfth OFDM symbol,
- wherein the first subset of frequency resources, the second subset of frequency resources, the third subset of frequency resources, the fourth subset of frequency resources, the fifth subset of frequency resources, the sixth subset of frequency resources, the seventh subset of frequency resources, the eighth subset of frequency resources, the ninth subset of frequency resources, the tenth subset of frequency resources, the eleventh subset of frequency resources, and the twelfth subset of frequency resources do not overlap in a frequency domain.
A base station, comprising:
- a memory;
- at least one transceiver;
- and
- at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
- identify a reference signal configuration for transmission of a downlink positioning reference signal (DL-PRS) to a user equipment (UE), the reference signal configuration providing reference signal resources within at least a first orthogonal frequency division multiplexing (OFDM) symbol, a second OFDM symbol, a third OFDM symbol, a fourth OFDM symbol, a fifth OFDM symbol, a sixth OFDM symbol, a seventh OFDM symbol, an eighth OFDM symbol, a ninth OFDM symbol, a tenth OFDM symbol, an eleventh OFDM symbol, and a twelfth OFDM symbol;
- and
- cause the at least one transceiver to transmit, to the UE, based at least in part on the reference signal configuration, a first portion of the DL-PRS on a first subset of frequency resources of the first OFDM symbol, a second portion of the DL-PRS on a second subset of frequency resources of the second OFDM symbol, a third portion of the DL-PRS on a third subset of frequency resources of the third OFDM symbol, a fourth portion of the DL-PRS on a fourth subset of frequency resources of the fourth OFDM symbol, a fifth portion of the DL-PRS on a fifth subset of frequency resources of the fifth OFDM symbol, a sixth portion of the DL-PRS on a sixth subset of frequency resources of the sixth OFDM symbol, a seventh portion of the DL-PRS on a seventh subset of frequency resources of the seventh OFDM symbol, an eighth portion of the DL-PRS on an eighth subset of frequency resources of the eighth OFDM symbol, a ninth portion of the DL-PRS on a ninth subset of frequency resources of the ninth OFDM symbol, a tenth portion of the DL-PRS on a tenth subset of frequency resources of the tenth OFDM symbol, an eleventh portion of the DL-PRS on an eleventh subset of frequency resources of the eleventh OFDM symbol, and a twelfth portion of the DL-PRS on a twelfth subset of frequency resources of the twelfth OFDM symbol,
- wherein the first subset of frequency resources, the second subset of frequency resources, the third subset of frequency resources, the fourth subset of frequency resources, the fifth subset of frequency resources, the sixth subset of frequency resources, the seventh subset of frequency resources, the eighth subset of frequency resources, the ninth subset of frequency resources, the tenth subset of frequency resources, the eleventh subset of frequency resources, and the twelfth subset of frequency resources do not overlap in a frequency domain.
Dependencies are inferred from the claim text.