Reference signal transmission method and user equipment
AssigneeHuawei Device Co., Ltd.
InventorJian Wang
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention provide a reference signal transmission method and user equipment. The method includes: determining, by a first user equipment, a first identifier related to the first user equipment; determining, by the first user equipment, a first cyclic shift indication from to-be-selected cyclic shift indications according to the first identifier; determining, by the first user equipment, first reference signal according to the first cyclic shift indication and a preset base sequence; and sending, by the first user equipment, the first reference signal to second user equipment, thereby implementing reference signal transmission in D2D communication.
Claims17
A user equipment comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
- determine a first identifier related to the user equipment;
- determine a first cyclic shift indication according to the first identifier;
- determine a first reference signal according to the first cyclic shift indication and a preset base sequence;
- and
- send the first reference signal to another user equipment,
- wherein a kth cyclic shift indication is determined as the first cyclic shift indication according to k=modulo(m1, 8),
- wherein the first identifier comprises a single identifier of the user equipment,
- wherein m1 is equal to a value of the first identifier, and
- wherein the modulo(m1, 8) indicates a remainder obtained by dividing m1 by 8.
A user equipment comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
- determine a first identifier related to the user equipment;
- determine a first cyclic shift indication according to the first identifier;
- determine a first reference signal according to the first cyclic shift indication and a preset base sequence;
- and
- send the first reference signal to another user equipment,
- wherein the instructions to determine the first cyclic shift indication according to modulo(m1, 8) comprise instructions to determine the first cyclic shift indication according to a value of the first identifier and a value of a first parameter of a resource used to send the first reference signal,
- wherein the modulo(m1, 8) indicates a remainder obtained by dividing m1 by 8;
- wherein the m1 according to a value of the first identifier and a first offset value, and
- wherein the first offset value is a cell identifier value of a cell in which the user equipment is located, an identifier value of a D2D cluster to which the user equipment belongs, or an offset value configured by a first communications device.
A user equipment comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
- determine a first identifier related to the user equipment;
- determine a first cyclic shift indication according to the first identifier;
- determine a first reference signal according to the first cyclic shift indication and a preset base sequence;
- and
- send the first reference signal to another user equipment,
- wherein a kth cyclic shift indication is determined as the first cyclic shift indication according to k=modulo(m1, 8),
- wherein the first identifier comprises at least two identifiers of the user equipment,
- wherein m1 is a value determined on a basis of values of the at least two identifiers according to a preset operation rule, and
- wherein the modulo(m1, 8) indicates a remainder obtained by dividing m1 by 8.
Dependencies are inferred from the claim text.