Method and apparatus for generating reference signal

A user equipment, comprising:

• a memory, configured to store at least one mapping relation among at least one piece of reference signal solution information, at least one piece of orthogonal code configuration information, and at least one hopping mode;
• a receiver, configured to receive a signal carrying a piece of reference signal solution information sent by a base station;
• a processor, configured to determine a corresponding piece of the orthogonal code configuration information and a corresponding hopping mode according to the received piece of reference signal solution information and the stored at least one mapping relation;
• and
• a generator, configured to generate a reference signal according to the determined piece of the orthogonal code configuration information and the hopping mode,
• wherein the receiver is further configured to receive a second signal indicating a quantity of data transmission layers sent by the base station,
• wherein the processor is further configured to determine at least one corresponding mapping relation from the at least one mapping relation stored by the memory according to the quantity of the data transmission layers indicated by the second signal and determine the corresponding piece of the orthogonal code configuration information and the corresponding hopping mode according to the received reference signal solution information and the at least one determined corresponding mapping relation,
• wherein different data transmission layers use a single orthogonal cover code when the orthogonal code configuration information includes the orthogonal cover code.

A method for generating a reference signal, comprising:

• storing, by a base station, at least one mapping relation among at least one piece of reference signal solution information, at least one piece of orthogonal code configuration information, and at least one hopping mode;
• and
• sending, by the base station, a first signal carrying a piece of reference signal solution information of the at least one piece of reference signal solution information to a user equipment to enable the user equipment to determine a corresponding piece of the orthogonal code configuration information and a corresponding hopping mode according to the reference signal solution information sent by the base station and at least one corresponding mapping relation from the at least one mapping relation stored by the user equipment, and to generate the reference signal according to the determined piece of the orthogonal code configuration information and the determined hopping mode,
• wherein before sending by the base station the first signal the method further comprises:
• sending by the base station a second signal indicating a quantity of data transmission layers to the user to enable the user equipment to determine the at least one corresponding mapping relation from the at least one mapping relation stored in the user equipment according to the indicated quantity of the data transmission layers,
• wherein different data transmission layers use a single orthogonal cover code when the orthogonal code configuration information includes the orthogonal cover code.

A base station, comprising:

• a memory, configured to store at least one mapping relation among at least one piece of reference signal solution information, at least one piece of orthogonal code configuration information, and at least one hopping mode;
• and
• a transmitter, configured to send a first signal carrying a piece of reference signal solution information of the at least one piece of reference signal solution information, to a user equipment to enable the user equipment to determine a corresponding piece of the orthogonal code configuration information and a corresponding hopping mode according to the reference signal solution information sent by the base station and at least one corresponding mapping relation from the at least one mapping relation stored by the user equipment, and to generate a reference signal according to the determined piece of the orthogonal code configuration information and the determined hopping mode,
• wherein the transmitter is further configured to send a second signal indicating a quantity of data transmission layers to the user equipment to enable the user equipment to determine the at least one corresponding mapping relation from the at least one mapping relation stored in the user equipment according to the indicated quantity of the data transmission layers,
• wherein different data transmission layers use a single orthogonal cover code when the orthogonal code configuration information includes the orthogonal cover code.