Method and apparatus for establishing direct communication for mobiles in a radio communication system
First Claim
Patent Images
1. A method for operating a radiotelephone system, the method comprising:
- at a first mobile station, requesting communication with a second mobile station; and
at a base station serving the first mobile station, if radio propagation conditions between the first mobile station and the second mobile station are sufficiently good, instructing the first mobile station and the second mobile station to establish direct communication.
4 Assignments
0 Petitions
Accused Products
Abstract
A radiotelephone method includes detecting other mobile stations and identifying possible relay candidates among the other mobile stations. The method then includes communicating information about the candidates to a base station. Communication with a second mobile station is requested of the base station at a first mobile station. If the first mobile station and the second mobile station are physically close, the base station instructs the first mobile station and the second mobile station to establish direct communication.
-
Citations
19 Claims
-
1. A method for operating a radiotelephone system, the method comprising:
-
at a first mobile station, requesting communication with a second mobile station; and
at a base station serving the first mobile station, if radio propagation conditions between the first mobile station and the second mobile station are sufficiently good, instructing the first mobile station and the second mobile station to establish direct communication. - View Dependent Claims (2, 3, 4, 7)
-
-
5. A method for operating a radiotelephone system, the method comprising:
-
at one or more mobile stations of the radiotelephone system, detecting other mobile stations to which radio propagation conditions are sufficiently good;
at the one or more mobile stations, communicating information about the detected mobile stations to a base station of the radiotelephone system;
at a first mobile station, requesting communication with a second mobile station; and
at the base station, if the radio propagation conditions between the first mobile station and the second mobile station are sufficiently good, instructing the first mobile station and the second mobile station to establish direct communication. - View Dependent Claims (6, 8, 9, 10, 11, 12, 13)
-
-
14. A method for operating a base station in a radiotelephone system, the method comprising:
-
receiving a request from a first mobile station to initiate a call with a second mobile station in the radiotelephone system;
based at least in part on a relay candidate list associated with the first mobile station, determining if the second mobile station is physically close to the first mobile station; and
if so, instructing the first mobile station and the second mobile station to enter a relay mode for direct link communication. - View Dependent Claims (15, 16)
-
-
17. A radiotelephone comprising:
-
a radio communication circuit configured for two-way radio communication with remote radio devices; and
a controller configured to control the radio communication circuit to establish a radio link to a remote base station to convey a request for communication with another radiotelephone and to receive over the radio link a direct communication instruction, and further configured to control the radio communication circuit to interrupt the radio link and establish a relay radio link with the other radiotelephone in response to the direct communication instruction. - View Dependent Claims (18, 19)
-
Specification