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US 12,587,335 B2Granted
Systems and methods for indicating demodulation reference signal ports for wireless communication
AssigneeZte Corporation
InventorsShujuan Zhang, Bo Gao, Meng Mei, Zhaohua Lu
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Abstract
Presented are systems and methods for wireless communication. In one aspect, a wireless communication device determines a first demodulation reference signal (DMRS) table according to first information from a wireless communication node. In one aspect, the wireless communication device receives a value of a field in a signaling from the wireless communication node. In one aspect, the wireless communication device determines a first DMRS parameter according to the first DMRS table and the value of the field. In one aspect, the first DMRS table includes a mapping between values of the field of the signaling and values of the first DMRS parameter.
Claims20
A method comprising:
- determining, by a wireless communication device, a first demodulation reference signal (DMRS) table according to first information from a wireless communication node;
- receiving, by the wireless communication device, a value of a field in a signaling from the wireless communication node;
- and
- determining, by the wireless communication device, a first DMRS parameter according to the first DMRS table and the value of the field,
- wherein the first DMRS table includes a mapping between values of the field of the signaling and values of the first DMRS parameter, and each of the values of the field is associated with a respective one of the values of the first DMRS parameter,
- wherein the first DMRS table includes the first DMRS parameter of at least two categories of DMRS ports, and different categories of the at least two categories of DMRS ports correspond to at least one of:
- different numbers of DMRS orthogonal frequency division multiplexing (OFDM) symbol groups of one time domain orthogonal cover code (TD-OCC), different numbers of DMRS OFDM symbols of one TD-OCC, different numbers of DMRS OFDM symbols in one DMRS OFDM symbol group of one TD-OCC, or different relationships between vectors of one TD-OCC, and
- wherein each of the DMRS OFDM symbol groups includes one or more consecutive OFDM symbols.
5 more elements
A method comprising:
- sending, by a wireless communication node to a wireless communication device, first information to determine a first demodulation reference signal (DMRS) table;
- and
- sending, by the wireless communication node, a value of a field in a signaling to the wireless communication device,
- wherein the value of the field is for use by the wireless communication device to determine a first DMRS parameter according to the first DMRS table and the value of the field,
- wherein the first DMRS table includes a mapping between values of the field of the signaling and values of the first DMRS parameter, and each of the values of the field is associated with a respective one of the values of the first DMRS parameter,
- wherein the first DMRS table includes the first DMRS parameter, that is of at least two categories of DMRS ports, and different categories of the at least two categories of DMRS ports correspond to at least one of:
- different numbers of DMRS orthogonal frequency division multiplexing (OFDM) symbol groups of one time domain orthogonal cover code (TD-OCC), different numbers of DMRS OFDM symbols of one TD-OCC, different numbers of DMRS OFDM symbols in one DMRS OFDM symbol group of one TD-OCC, or different relationships between vectors of one TD-OCC, and
- wherein each of the DMRS OFDM symbol groups includes one or more consecutive OFDM symbols.
5 more elements
An apparatus comprising a processor and a memory storing instructions, execution of which by the processor causes the apparatus to:
- determine a first demodulation reference signal (DMRS) table according to first information from a wireless communication node;
- receive a value of a field in a signaling from the wireless communication node;
- and
- determine a first DMRS parameter according to the first DMRS table and the value of the field,
- wherein the first DMRS table includes a mapping between values of the field of the signaling and values of the first DMRS parameter, and each of the values of the field is associated with a respective one of the values of the first DMRS parameter,
- wherein the first DMRS table includes the first DMRS parameter of at least two categories of DMRS ports, and different categories of the at least two categories of DMRS ports correspond to at least one of:
- different numbers of DMRS orthogonal frequency division multiplexing (OFDM) symbol groups of one time domain orthogonal cover code (TD-OCC), different numbers of DMRS OFDM symbols of one TD-OCC, different numbers of DMRS OFDM symbols in one DMRS OFDM symbol group of one TD-OCC, or different relationships between vectors of one TD-OCC, and
- wherein each of the DMRS OFDM symbol groups includes one or more consecutive OFDM symbols.
5 more elements
An apparatus comprising at least one processor and a memory storing instructions, execution of which by the at least one processor causes the apparatus to:
- send, to a wireless communication device, first information to determine a first demodulation reference signal (DMRS) table;
- and
- send a value of a field in a signaling to the wireless communication device,
- wherein the value of the field is for use by the wireless communication device to determine a first DMRS parameter according to the first DMRS table and the value of the field,
- wherein the first DMRS table includes a mapping between values of the field of the signaling and values of the first DMRS parameter, and each of the values of the field is associated with a respective one of the values of the first DMRS parameter,
- wherein the first DMRS table includes the first DMRS parameter, that is of at least two categories of DMRS ports, and different categories of the at least two categories of DMRS ports correspond to at least one of:
- different numbers of DMRS orthogonal frequency division multiplexing (OFDM) symbol groups of one time domain orthogonal cover code (TD-OCC), different numbers of DMRS OFDM symbols of one TD-OCC, different numbers of DMRS OFDM symbols in one DMRS OFDM symbol group of one TD-OCC, or different relationships between vectors of one TD-OCC, and
- wherein each of the DMRS OFDM symbol groups includes one or more consecutive OFDM symbols.
5 more elements
Dependencies are inferred from the claim text.