Electronic device, wireless communication method and computer readable storage medium

Abstract

An electronic device includes a processing circuit configured to: receive information about a number N of candidate transmit beams from a user device, wherein N is an integer greater than 1; select from the N candidate transmit beams a transmit beam for sending downlink information to the user device; and determine, on the basis of the selected transmit beam, a transmission configuration indication (TCI) state, and send the TCI state to the user device. The electronic device, the wireless communication method and the computer readable storage medium enable a network-side device to notify the user device of the information about transmit beams. In this way, the user device can determine, according to the transmit beam of the network-side device, a proper receiving beam so as to improve the gain of the system.

1 . An electronic equipment comprising a processing circuit configured to:
 receive, from a user equipment, information about N candidate transmitted beams, wherein N is an integer greater than 1;   select, from the N candidate transmitted beams, a transmitted beam for transmitting downlink information to the user equipment; and   determine a Transmission Configuration Indication TCI state according to the selected transmitted beam, and transmit the TCI state to the user equipment.   
     
     
         2 . The electronic equipment according to  claim 1 , wherein the processing circuit is further configured to:
 determine identification information of the N candidate transmitted beams according to the information about the N candidate transmitted beams.   
     
     
         3 . The electronic equipment according to  claim 2 , wherein the processing circuit is further configured to:
 determine order information of the N candidate transmitted beams according to the information about the N candidate transmitted beams; and   select a transmitted beam for transmitting downlink information to the user equipment according to the order information of the N candidate transmitted beams.   
     
     
         4 . The electronic equipment according to  claim 2 , wherein the processing circuit is further configured to:
 determine channel quality information between all or a part of candidate transmitted beams in the N candidate transmitted beams and the user equipment according to the information about the N candidate transmitted beams; and   select a transmitted beam for transmitting downlink information to the user equipment according to the channel quality information between the all or a part of candidate transmitted beams and the user equipment.   
     
     
         5 . The electronic equipment according to  claim 1 , wherein the processing circuit is further configured to:
 determine a beam for transmitting a Synchronization Signal Block SSB corresponding to the selected transmitted beam; and   determine a TCI state to be transmitted to the user equipment according to a mapping relation between the TCI state and the beam for transmitting the SSB.   
     
     
         6 . The electronic equipment according to  claim 5 , wherein a radiation range of the selected transmitted beam is within a radiation range of the beam for transmitting the SSB corresponding to the selected transmitted beam. 
     
     
         7 . The electronic equipment according to  claim 5 , wherein the processing circuit is further configured to:
 after an initial access is completed, establish a mapping relation between the TCI state and the beam for transmitting the SSB; and   transmit, to the user equipment, the mapping relation between the TCI state and the beam for transmitting the SSB.   
     
     
         8 . The electronic equipment according to  claim 1 , wherein the processing circuit is further configured to:
 periodically receive, from the user equipment, the information about the N candidate transmitted beams, or   send a request to the user equipment to obtain the information about the N candidate transmitted beams.   
     
     
         9 . (canceled) 
     
     
         10 . An electronic equipment comprising a processing circuit configured to:
 receive, from a network side device, a Transmission Configuration Indication TCI state; and   determine a received beam for receiving downlink information from the network side device according to the TCI state.   
     
     
         11 . The electronic equipment according to  claim 10 , wherein the processing circuit is configured to:
 transmit, to the network side device, information about N candidate transmitted beams for selecting, by the network side device, a transmitted beam for transmitting downlink information to the electronic equipment from the N candidate transmitted beams, and determine the TCI state according to the selected transmitted beam, wherein N is an integer greater than 1.   
     
     
         12 . The electronic equipment according to  claim 11 , wherein the processing circuit is further configured to:
 determine the N candidate transmitted beams according to channel quality between K transmitted beams of the network side device and the electronic equipment, wherein K is an integer greater than or equal to N.   
     
     
         13 . (canceled) 
     
     
         14 . The electronic equipment according to  claim 11 , wherein the processing circuit is further configured to:
 periodically transmit the information about the N candidate transmitted beams to the network side device; or   transmit the information about the N candidate transmitted beams in response to a request of the network side device.   
     
     
         15 . The electronic equipment according to  claim 11 , wherein the information about the N candidate transmitted beams comprises identification information of the N candidate transmitted beams, and
 wherein the processing circuit is further configured to express identification of the N candidate transmitted beams in any means of:   expressing the identification of each of the N candidate transmitted beams by using binary coding;   expressing the identification of the N candidate transmitted beams by using a bit map;   expressing the identification of a reference candidate transmitted beam in the N candidate transmitted beams by using the binary coding, and expressing the identification of other candidate transmitted beams in addition to the reference candidate transmitted beam in the N candidate transmitted beams by using binary coding of a difference value between identifications of other candidate transmitted beams and the reference candidate transmitted beam; and   according to a first mapping table and an unordered combination of the N candidate transmitted beams, determining combination identification corresponding to the combination, and expressing the identification of the N candidate transmitted beams by using the combination identification, wherein the first mapping table stores a mapping relation between the combination of the N candidate transmitted beams selected from the K transmitted beams of the network side device and the combination identification, wherein K is an integer greater than or equal to N.   
     
     
         16 . (canceled) 
     
     
         17 . The electronic equipment according to  claim 15 , wherein the information about the N candidate transmitted beams comprises order information of the N candidate transmitted beams. 
     
     
         18 . The electronic equipment according to  claim 17 , wherein the processing circuit is further configured to:
 according to a second mapping table and an ordered arrangement of the N candidate transmitted beams, determine arrangement identification corresponding to the arrangement; and   express identification and order of the N candidate transmitted beams by using the arrangement identification,   wherein the second mapping table stores a mapping relation between the arrangement of the N candidate transmitted beams selected from the K transmitted beams of the network side device and the arrangement identification, wherein K is an integer greater than or equal to N.   
     
     
         19 . The electronic equipment according to  claim 15 , wherein the information about the N candidate transmitted beams comprises channel quality information between all or a part of candidate transmitted beams in the N candidate transmitted beams and the electronic equipment. 
     
     
         20 . The electronic equipment according to  claim 10 , wherein the processing circuit is further configured to:
 determine, according to a mapping relation between the TCI state and a beam for transmitting a Synchronization Signal Block SSB, a beam for transmitting the SSB; and   determine a received beam for receiving downlink information from the network side device according to a mapping relation between the beam for transmitting the SSB and the received beam.   
     
     
         21 . The electronic equipment according to  claim 20 , wherein the processing circuit is further configured to:
 after an initial access is completed, receive from the network side device the mapping relation between the TCI state and the beam for transmitting the SSB.   
     
     
         22 . The electronic equipment according to  claim 20 , wherein the processing circuit is further configured to:
 establish, in the process of initial access, the mapping relation between the beam for transmitting the SSB and the received beam.   
     
     
         23 .- 24 . (canceled) 
     
     
         25 . A wireless communication method, comprising:
 receiving, from user equipment, information about N candidate transmitted beams, wherein N is an integer greater than 1;   selecting, from the N candidate transmitted beams, a transmitted beam for transmitting downlink information to the user equipment; and   determining a Transmission Configuration Indication TCI state according to the selected transmitted beam, and transmitting the TCI state to the user equipment.   
     
     
         26 .- 27 . (canceled)