US9271305B2ActiveUtilityA1
Method and apparatus for controlling serving grant of user terminal of neighboring cell
Est. expiryDec 30, 2031(~5.4 yrs left)· nominal 20-yr term from priority
Inventors:Chuanfeng He
H04W 72/23H04W 76/27H04W 72/0466H04W 76/046H04W 72/14
66
PatentIndex Score
1
Cited by
25
References
20
Claims
Abstract
Embodiments of the present invention provide a method, an apparatus, and a system for controlling a serving grant of a user terminal (UE) of a neighboring cell. The method is used for controlling a UE in a CELL-FACH state or in an idle state of a neighboring cell through a common E-RGCH. The method includes: obtaining a control command by monitoring the common E-RGCH of the neighboring cell; determining whether the UE satisfies at least one further configured controlled condition; and when the UE satisfies the at least one controlled condition, adjusting the serving grant of the UE based on the obtained control command. Through the method and the apparatus according to the embodiments of the present invention, throughput of the UE may be prevented from being reduced excessively, thereby improving communication performance.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A method for controlling a serving grant of a user equipment (UE) of a neighboring cell through a common enhanced dedicated channel relative grant channel (E-RGCH) of the neighboring cell, wherein the UE is in a cell-forward access channel (CELL-FACH) state or in an idle state, the method comprises:
obtaining a control command by monitoring the common E-RGCH of the neighboring cell;
determining whether the UE satisfies at least one controlled condition; and
when the UE satisfies the at least one controlled condition, adjusting the serving grant of the UE based on the obtained control command.
2. The method according to claim 1 , further comprising:
when the UE does not satisfy one or more controlled conditions among the at least one controlled condition, controlling the UE to neglect the obtained control command.
3. The method according to claim 1 , wherein the adjusting the serving grant of the UE comprises: lowering the serving grant of the UE.
4. The method according to claim 1 , wherein the at least one controlled condition is a serving grant threshold of the UE;
the determining whether the UE satisfies the at least one controlled condition comprises:
determining whether the serving grant of the UE is higher than the serving grant threshold, wherein
when the serving grant of the UE is higher than the serving grant threshold, it is determined that the UE satisfies the at least one controlled condition.
5. The method according to claim 1 , wherein the at least one controlled condition is multiple monitoring thresholds for monitoring the common E-RGCH;
the determining whether the UE satisfies the at least one controlled condition comprises:
determining a measurement result of the UE is in which range among multiple ranges limited by the multiple monitoring thresholds, wherein
when the measurement result of the UE is in a range corresponding to the at least one controlled condition, it is determined that the UE satisfies the at least one controlled condition.
6. The method according to claim 5 , further comprising: arranging each of the multiple ranges limited by the multiple monitoring thresholds to correspond to each of multiple control commands on the common E-RGCH, wherein
the adjusting the serving grant of the UE based on the obtained control command comprises:
adjusting the serving grant of the UE based on a control command corresponding to the range which the measurement result of the UE is in.
7. The method according to claim 5 , wherein the measurement result of the UE comprises at least one of the following: (a) a path loss difference between cell to which the UE belongs and the neighboring cell, and (b) that the UE detects that a measurement result of a common pilot channel (CPICH) of the neighboring cell reaches a threshold for reporting a measurement event.
8. The method according to claim 5 , further comprising: setting the multiple monitoring thresholds according to a measurement event triggering condition, wherein
if a measurement item is a path loss difference, the measurement event triggering condition is:
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if the measurement item is a measurement item other than the path loss difference, the measurement event triggering condition is:
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,
wherein CIO New is an offset of a cell entering a measurement reporting range; W is a parameter that a network side sends to the user equipment; R 1a is a reporting range constant; and H 1a is a hysteresis parameter; and
wherein the setting the multiple monitoring thresholds according to the measurement event triggering condition further comprises:
setting the multiple monitoring thresholds by configuring multiple corresponding parameters with different values, for one or more parameters in CIO New , W, R 1a , and H 1a in the measurement event triggering condition.
9. The method according to claim 5 , further comprising: setting the multiple monitoring thresholds according to preset multiple thresholds T, wherein the T is one of the following: (a) a path loss difference, (b) common pilot channel received chip energy divided by band power spectral density (CPICH Ec/N0), and (c) common pilot channel received signal code power (CPICH RSCP).
10. The method according to claim 1 , wherein the at least one controlled condition is a serving grant threshold of the UE and multiple monitoring thresholds for monitoring the common E-RGCH;
the determining whether the UE satisfies the at least one controlled condition comprises:
determining whether the serving grant of the UE is higher than the serving grant threshold and a measurement result of the UE is in which range among multiple ranges limited by the multiple monitoring thresholds, wherein
when the serving grant of the UE is higher than the serving grant threshold and the measurement result of the UE is in a range corresponding to the at least one controlled condition, it is determined that the UE satisfies the at least one controlled condition.
11. An apparatus for controlling a serving grant of a user equipment (UE) of a neighboring cell through a common enhanced dedicated channel relative grant channel (E-RGCH) of the neighboring cell, wherein the UE is in a cell-forward access channel (CELL-FACH) state or in an idle, the apparatus comprises a processor and a non-transitory processor-readable medium having processor-executable instructions stored thereon, the processor-executable instructions including a plurality of units, the units including:
an obtaining unit, configured to obtain a control command by monitoring the common E-RGCH of the neighboring cell;
a determination unit, configured to determine whether the UE satisfies at least one controlled condition; and
a control unit, configured to, when the UE satisfies the at least one controlled condition, adjust the serving grant of the UE based on the obtained control command.
12. The apparatus according to claim 11 , wherein the control unit is further configured to:
when the UE does not satisfy one or more controlled conditions among the at least one controlled condition, control the UE to neglect the obtained control command.
13. The apparatus according to claim 11 , wherein the control unit adjusts the serving grant of the UE by lowering the serving grant of the UE.
14. The apparatus according to claim 11 , wherein the determination unit determining whether the UE satisfies the at least one controlled condition, further comprises:
the determination unit is configured to determine whether the serving grant of the UE is higher than a serving grant threshold, wherein
when the serving grant of the UE is higher than the serving grant threshold, the determination unit determines that the UE satisfies the at least one controlled condition.
15. The apparatus according to claim 11 , wherein the determination unit determining whether the UE satisfies the at least one controlled condition, comprises:
the determination unit is configured to determine a measurement result of the UE is in which range among multiple ranges limited by the multiple monitoring thresholds, wherein
when the measurement result of the UE is in a range corresponding to the at least one controlled condition, the determination unit determines that the UE satisfies the at least one controlled condition.
16. The apparatus according to claim 15 , wherein the control unit is further configured to arrange each of the multiple ranges limited by the multiple monitoring thresholds to correspond to each of multiple control commands on the common E-RGCH, wherein
the control unit adjusting the serving grant of the UE based on the obtained control command comprises:
the control unit is configured to adjust a working state of the UE based on a control command corresponding to the range which the measurement result of the UE is in.
17. The apparatus according to claim 11 , wherein the determination unit determining whether the UE satisfies the at least one controlled condition, comprises:
the determination unit is configured to determine whether the serving grant of the UE is higher than the serving grant threshold and in which range among multiple ranges limited by the multiple monitoring thresholds a measurement result of the UE is, wherein
when the serving grant of the UE is higher than the serving grant threshold and the measurement result of the UE is in a range corresponding to the at least one controlled condition, the determination unit determines that the UE satisfies the at least one controlled condition.
18. The apparatus according to claim 11 , wherein the apparatus is comprised in the user equipment.
19. A communication system for controlling a serving grant of a user equipment (UE) of a neighboring cell through a common enhanced dedicated channel relative grant channel (E-RGCH) of the neighboring cell, comprising the UE and a network device wherein, the UE is in a cell-forward access channel (CELL-FACH) state or in an idle state, and the UE is configured to obtain a control command from the network device by monitoring the common E-RGCH of the neighboring cell, the UE is also configured to determine whether the UE satisfies at least one controlled condition, when the UE satisfies the at least one controlled condition, the UE is configured to adjust the serving grant of the UE based on the obtained control command.
20. The communication system according to claim 19 , wherein the network device comprises a base station,
the UE obtaining a control command from the network device comprises:
the UE is configured to obtain the control command from the base station.Join the waitlist — get patent alerts
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