US 2022/0070797 A1 · METHODS AND UNITS OF A BASE STATION SYSTEM FOR HANDLING A SIGNAL FOR TRANSMISSION OVER A FRONTHAUL LINK BETWEEN THE UNITS

Abstract

Disclosed is a method performed by a first unit of a base station system of a wireless communication network for handling a signal for transmission over a fronthaul link between the first unit and a second unit of the base station system. The base station system includes a base unit and a remote unit. The method includes receiving the signal having at least one complex value, each consisting of two subparts, each being represented by a first number of bits, and transmitting the signal over the fronthaul link to the second unit, wherein at least two subparts are represented in a subgroup, the subgroup being a binary codeword having an integer number of bits that is a multiple of a second non-integer number of bits allocated per subpart, the second non-integer number of bits being fewer than the first number of bits.

Claims21

Dependent claims

A method performed by a first unit of a base station system of a wireless communication network for handling a signal for transmission over a fronthaul link between the first unit and a second unit of the base station system, the base station system comprising a base unit and a remote unit, the remote unit being arranged to transmit the signal wirelessly to, and receive from, one or more wireless devices, and one of (A) the first unit is the base unit and the second unit is the remote unit, and (B) the first unit is the remote unit and the second unit is the base unit, the method comprising:

receiving the signal comprising at least one complex value, each complex value consisting of two subparts, a real part and an imaginary part, the subparts each being represented by a first number of bits;
and
transmitting the signal over the fronthaul link to the second unit, at least two subparts of the at least one complex value being represented in a subgroup, the subgroup being a binary codeword comprising an integer number (L) of bits that is a multiple (G) of a second non-integer (Nm) number of bits allocated per subpart, the second non-integer number of bits being fewer than the first number of bits.

A method performed by a second unit of a base station system of a wireless communication network for handling a signal for transmission over a fronthaul link between the first unit and a second unit of the base station system, the base station system comprising a base unit and a remote unit, the remote unit being arranged to transmit the signal wirelessly to, and receive from, one or more wireless communication devices, and one of (A) the first unit is the base unit and the second unit is the remote unit, and (B) the first unit is the remote unit and the second unit is the base unit, the method comprising:

receiving the signal over the fronthaul link from the first unit, the signal representing at least one complex value consisting of two subparts, a real part and an imaginary part, each subpart being represented by a non-integer (Nm) number of bits, the signal comprising a subgroup comprising at least two subparts of the at least one complex value, the subgroup being a binary codeword consisting of an integer number (L) of bits that is a multiple (G) of the non-integer (Nm) number of bits per subpart;
and
decoding the at least two subparts from the received binary codeword based on the received signal comprising the codeword, information of the non-integer number of bits and on knowledge of the representation of each subpart by the non-integer number of bits.

A first unit of a base station system operable in a wireless communication network configured for handling a signal for transmission over a fronthaul link between the first unit and a second unit of the base station system, the base station system comprising a base unit and a remote unit, the remote unit being arranged to transmit the signal wirelessly to, and receive from, one or more wireless communication devices, and one of (A) the first unit is the base unit and the second unit is the remote unit, and (B) the first unit is the remote unit and the second unit is the base unit, the first unit comprising:

processing circuitry;
and
memory, said memory containing instructions executable by the processing circuitry, to configure the first unit:
receive the signal comprising at least one complex value, each complex value consisting of two subparts, a real part and an imaginary part, the subparts each being represented by a first number of bits;
and
transmit the signal over the fronthaul link to the second unit, at least two subparts of the at least one complex value being represented in a subgroup, the subgroup being a binary codeword comprising an integer number (L) of bits that is a multiple (G) of a second non-integer (Nm) number of bits allocated per subpart, the second non-integer number of bits being fewer than the first number of bits.

3 more elements

Dependencies are inferred from the claim text.

Methods and units of a base station system for handling a signal for transmission over a fronthaul link between the units

Life of this patent

Methods and units of a base station system for handling a signal for transmission over a fronthaul link between the units

Life of this patent

Abstract

Claims21