METHODS AND APPARATUS FOR UPLINK TIMING ALIGNMENT IN SYSTEM WITH LARGE NUMBER OF ANTENNAS
First Claim
1. A method for uplink timing alignment by a mobile station in a wireless network, the method comprising:
- receiving a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay;
receiving a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay; and
determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time.
1 Assignment
0 Petitions
Accused Products
Abstract
A mobile station is configured to perform a method for uplink timing alignment in a wireless network. The method includes receiving a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay. The method also includes receiving a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay. The method further includes determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time.
88 Citations
24 Claims
-
1. A method for uplink timing alignment by a mobile station in a wireless network, the method comprising:
-
receiving a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay; receiving a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay; and determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An apparatus for use in a mobile station configured for uplink timing alignment in a wireless network, the apparatus comprising:
a processor configured to; receive a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay; receive a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay; and determine a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time. - View Dependent Claims (8, 9, 10, 11, 12)
-
13. A method for uplink timing alignment by a base station in a wireless network, the method comprising:
-
transmitting a first downlink synchronization signal to a mobile station on a first beam pair, the first downlink synchronization signal received at the mobile station at a first time associated with a first propagation delay; transmitting a second downlink synchronization signal to the mobile station on a second beam pair, the second downlink synchronization signal received at the mobile station at a second time associated with a second propagation delay; and receiving from the mobile station a time difference between the first time and the second time, and determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and the time difference between the first time and the second time. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. An apparatus for use in a base station configured for uplink timing alignment in a wireless network, the apparatus comprising:
a processor configured to; transmit a first downlink synchronization signal to a mobile station on a first beam pair, the first downlink synchronization signal received at the mobile station at a first time associated with a first propagation delay; transmit a second downlink synchronization signal to the mobile station on a second beam pair, the second downlink synchronization signal received at the mobile station at a second time associated with a second propagation delay; and receive from the mobile station a time difference between the first time and the second time, and determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and the time difference between the first time and the second time. - View Dependent Claims (20, 21, 22, 23, 24)
Specification