Systems and methods for sub-band selection for a wireless device during connection
AssigneeSprint Spectrum L.P.
InventorsSanghoon Sung, Yun Sung Kim, Pinal Tailor, Siddhartha Chenumolu
Life of this patent
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Abstract
Systems and methods are described for sub-band selection for a wireless device during connection. An access node may receive a RACH preamble message from a wireless device. It may be determined that a received signal level associated with the message does not meet a signal level criteria. The wireless device may be instructed to transmit signal information to the access node. A sub-band that comprises a signal level that meets the signal level criteria may be selected. The wireless device may then be instructed to communicate with the access node using the selected sub-band when requesting a connection.
Claims18
A method for sub-band selection for a wireless device during connection, the method comprising:
- receiving, at an access node, a RACH preamble message from a wireless device;
- determining that a received signal level associated with the message does not meet a signal level criteria;
- instructing the wireless device to transmit signal information to the access node, wherein the wireless device is instructed to transmit a sounding reference signal over a plurality of sub-bands;
- selecting, based on the sounding reference signal, a sub-band that comprises a signal level that meets the signal level criteria;
- and
- instructing the wireless device to communicate with the access node using the selected sub-band when requesting a connection.
A system for sub-band selection for a wireless device during connection, the system comprising:
- a processing node with a processor configured to:
- receive, at an access node, a RACH preamble message from a wireless device;
- determine that a received signal level associated with the message does not meet a signal level criteria;
- instruct the wireless device to transmit signal information to the access node, wherein the wireless device is instructed to transmit a sub-band channel quality indicator (CQI) report to the access node;
- select, based on the received sub-band CQI report, a sub-band that comprises a signal level that meets the signal level criteria;
- and
- instruct the wireless device to communicate with the access node using the selected sub-band when requesting a connection.
A method for sub-band selection for a wireless device during connection, the method comprising:
- receiving a RACH preamble message from a wireless device;
- determining that a received signal level associated with the message does not meet a signal level criteria;
- instructing the wireless device to transmit signal information to the access node, wherein the wireless device is instructed to transmit a sub-band channel quality indicator (CQI) report to the access node;
- selecting, based on the received sub-band CQI report, a sub-band that comprises a signal level that meets the signal level criteria;
- and
- instructing the wireless device to communicate with the access node using the selected sub-band when requesting a connection.
Dependencies are inferred from the claim text.