REPEATER, NETWORK DEVICE AND COMMUNICATION METHOD THEREOF
A communication method of a repeater includes: receiving first indication information from a network device, the first indication information being used to indicate and/or configure a first frequency resource and/or a third frequency resource, wherein the first frequency resource is used to transmit, by the repeater, a first communication signal generated by the repeater to the network device, the third frequency resource is used to receive, by the repeater, a third communication signal transmitted by the network device to the repeater; when receiving a sixth forwarding signal from a terminal equipment: amplifying the sixth forwarding signal and obtaining a second forwarding signal; and forwarding the second forwarding signal to the network device, and when receiving a fourth forwarding signal from the network device: amplifying the fourth forwarding signal and obtaining a fifth forwarding signal, and forwarding the fifth forwarding signal to the terminal equipment.
1 . A communication method of a repeater, comprising:
receiving first indication information from a network device, the first indication information being used to indicate and/or configure a first frequency resource and/or a third frequency resource, wherein the first frequency resource is used to transmit, by the repeater, a first communication signal generated by the repeater to the network device, the third frequency resource is used to receive, by the repeater, a third communication signal transmitted by the network device to the repeater;
when receiving a sixth forwarding signal from a terminal equipment:
amplifying the sixth forwarding signal and obtaining a second forwarding signal; and
forwarding the second forwarding signal to the network device, and
when receiving a fourth forwarding signal from the network device:
amplifying the fourth forwarding signal and obtaining a fifth forwarding signal, and
forwarding the fifth forwarding signal to the terminal equipment.
2 . The communication method according to claim 1 , wherein the first indication information is carried by a radio resource control (RRC) signal and/or a physical downlink control channel (PDCCH) and/or media access control (MAC) control element (CE).
3 . The communication method according to claim 1 , wherein the first frequency resource is an uplink carrier to which a first cell corresponds, or an uplink bandwidth part (BWP), or an active uplink BWP configured for the repeater;
the third frequency resource is a downlink carrier to which the first cell corresponds, or a downlink BWP, or an active downlink BWP configured for the repeater.
4 . The communication method according to claim 1 , wherein
a beam used for receiving the fourth forwarding signal is indicated or configured by the network device to the repeater or is predefined, a beam used for transmitting the second forwarding signal is indicated or configured by the network device to the repeater or is predefined;
a beam used for receiving the sixth forwarding signal is indicated or configured by the network device to the repeater, a beam used for transmitting the fifth forwarding signal is indicated or configured by the network device to the repeater.
5 . The communication method according to claim 1 , wherein
a spatial filter used for transmitting the first communication signal is reused as a beam for transmitting the second forwarding signal, and/or,
a spatial filter used for receiving the third communication signal from the network device is reused as a beam for receiving the fourth forwarding signal.
6 . The communication method according to claim 1 , wherein the method further comprises:
receiving third indication information and/or fourth indication information from the network device, the third indication information being used to configure and/or indicate a spatial filter and/or a transmission configuration indication (TCI) for transmitting a first communication signal by the repeater, the fourth indication information being used to configure and/or indicate a spatial filter and/or a TCI for receiving a third communication signal from the network device by the repeater.
7 . The communication method according to claim 1 , wherein the repeater receives at least one of the first indication information, third indication information or fourth indication information, at a first cell of the network device;
wherein the first cell is a serving cell of the repeater.
8 . The communication method according to claim 1 , wherein the first communication signal comprises at least one of the following: a physical uplink shared channel (PUSCH), a demodulation reference signal (DMRS), a sounding reference signal, a physical random access channel, a physical uplink control channel, a scheduling request;
wherein a scrambling sequence of the PUSCH is related to an identifier of a first cell, or a sequence generation of the DMRS is related to an identifier of the first cell.
9 . The communication method according to claim 1 , wherein the third communication signal comprises at least one of the following: a physical downlink shared channel (PDSCH), a physical downlink control channel (PDCCH), Synchronization Signal Block (SSB), Channel State Information Reference Signal (CSIRS).
10 . The communication method according to claim 1 , wherein the third communication signal is related to a radio network temporary identifier (RNTI) of the repeater.
11 . The communication method according to claim 1 , wherein the repeater receives the fourth forwarding signal at a fourth frequency resource, the repeater transmits the second forwarding signal at a second frequency resource.
12 . The communication method according to claim 11 , wherein
the second frequency resource at least includes a frequency resource other than the first frequency resource, the second frequency resource contains the first frequency resource, or, the second frequency resource does not contain the first frequency resource, or
the second frequency resource is identical to the first frequency resource, or
the second frequency resource and the first frequency resource are located in different bands.
13 . The communication method according to claim 11 , wherein
the fourth frequency resource at least includes a frequency resource other than the third frequency resource, the fourth frequency resource contains the third frequency resource, or the fourth frequency resource does not contain the third frequency resource, or,
the fourth frequency resource is identical to the third frequency resource, or
the fourth frequency resource and the third frequency resource are located in different bands.
14 . The communication method according to claim 11 , wherein a center frequency of the fourth frequency resource is identical to a center frequency of the second frequency resource, and/or, a bandwidth of the fourth frequency resource is greater than a bandwidth of the second frequency resource.
15 . The communication method according to claim 11 , wherein the second frequency resource and/or the fourth frequency resource are/is predefined or preconfigured, and/or, the second frequency resource and/or the fourth frequency resource are/is not indicated by a signaling, and/or, the second frequency resource and/or the fourth frequency resource are/is indicated or configured by an operation administration and maintenance (OAM) entity.
16 . The communication method according to claim 11 , wherein the second frequency resource and the fourth frequency resource are indicated by the first indication information;
wherein the first indication information indicates: a starting frequency/frequencies and an ending frequency/frequencies of the second frequency resource and/or the fourth frequency resource, or a center frequency/frequencies and a bandwidth(s) of the second frequency resource and/or the fourth frequency resource, or a starting frequency/frequencies and bandwidth(s) of the second frequency resource and/or the fourth frequency resource.
17 . A repeater comprising:
a receiver configured to:
receive first indication information from a network device, the first indication information being used to indicate and/or configure a first frequency resource and/or a third frequency resource, the first frequency resource is used by the repeater to transmit a first communication signal generated by the repeater to the network device, the third frequency resource is used by the repeater to receive a third communication signal transmitted by the network device to the repeater, and
receive a sixth forwarding signal from a terminal equipment; and
a transmitter configured to:
amplify the sixth forwarding signal and obtain a second forwarding signal, and
forward the second forwarding signal to the network device, wherein
the receiver is further configured to receive a fourth forwarding signal from the network device, and
the transmitter configured to
amplify the fourth forwarding signal, and obtain a fifth forwarding signal, and
forward the fifth forwarding signal to the terminal equipment.