Method, user equipment and base station device for transmitting indication information

• US 9,338,683 B2
• Filed: 01/02/2014
• Issued: 05/10/2016
• Est. Priority Date: 07/06/2011
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Fan, Shuju
• Primary Examiner(s): Huq, Obaidul
• Application Number:
  US14/146,250
• Publication Number:
  US 20140112186A1
• Time in Patent Office: 859 Days
• Field of Search: 370/229, 370/230, 370/231, 370/235, 370/241, 370/252, 370/276, 370/277, 370/278, 370/310, 370/328, 370/338, 455/7, 455/24
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

A method, a user equipment, and a base station device for transmitting indication information. A method comprises: initially setting an indication information feedback mode of a user equipment to a deactivation state, where the user equipment in the deactivation state does not transmit indication information to a base station; after receiving an indication information feedback request transmitted by a network side, setting the indication information feedback mode of the user equipment to an activation state, where the user equipment in the activation state uses an indication information feedback cycle to transmit the indication information to the base station. Embodiments of the present disclosure initially set a user equipment to a deactivation state of not transmitting indication information to the base station, set a user equipment to an activation state of transmitting indication information when a network side has transmitted an indication information feedback request, reducing unnecessary uplink indication information feedback.

Claims

1. A method for transmitting indication information, comprising:

initially setting an indication information feedback mode of a user equipment to a deactivation state, wherein the user equipment in the deactivation state does not transmit indication information to a base station;

after receiving an indication information feedback request transmitted by a network side, setting the indication information feedback mode of the user equipment to an activation state; and

transmitting the indication information to the base station, by the user equipment in the activation state, using an indication information feedback cycle;

further comprising;

adjusting, by the user equipment, the indication information feedback cycle according to a feedback cycle adjustment request transmitted by the base station, or according to whether downlink data is received from the base station during a consecutive time period after setting the indication information feedback mode of the user equipment to the activation state;

wherein the transmitting the indication information to the base station, by the user equipment in the activation state, using the indication information feedback cycle, comprises transmitting the indication information to the base station, by the user equipment in the activation state, using the adjusted indication information feedback cycle;

wherein the adjusting the indication information feedback cycle comprises;

multiplying the indication information feedback cycle by 2ⁿ, or increasing or reducing the indication information feedback cycle to a designated value, wherein n is a non-zero integer, and wherein a value obtained by multiplying the indication information feedback cycle by 2ⁿ or the designated value is within an optional set, and the optional set comprises an optional value of the indication information feedback cycle.

2. The method according to claim 1, wherein the indication information is a channel quality indicator (CQI), or the indication information comprises the CQI and a pre-coding control indicator (PCI).

3. The method according to claim 1, further comprising:

if, during a first time period after setting the indication information feedback mode of the user equipment to the activation state, downlink data is received or the indication information feedback request transmitted by the network side is received, maintaining the user equipment in the activation state;

or

if, during the first time period after setting the indication information feedback mode of the user equipment to the activation state, neither the downlink data nor the indication information feedback request transmitted by the network side is received, setting the indication information feedback mode to the deactivation state.

4. A method for transmitting indication information, comprising:

transmitting an indication information feedback request to a user equipment, which causes an indication information feedback mode of the user equipment to be set to an activation state, wherein the indication information feedback mode of the user equipment is initially set to a deactivation state, and the user equipment in the deactivation state does not transmit indication information to a base station; and

transmitting the indication information to the base station, by the user equipment in the activation state, using an indication information feedback cycle;

further comprising;

transmitting a feedback cycle adjustment request to the user equipment so that the user equipment adjusts the indication information feedback cycle,

wherein the user equipment in the activation state transmitting the indication information to the base station comprises transmitting the indication information to the base station, by the user equipment in the activation state, using an adjusted feedback cycle;

wherein the transmitting to the user equipment the feedback cycle adjustment request comprises;

monitoring an uplink load of a cell; and

transmitting the feedback cycle adjustment request to the user equipment according to the uplink load;

wherein the transmitting the feedback cycle adjustment request to the user equipment according to the uplink load comprises;

when the uplink load exceeds a first threshold, or a remaining uplink resource of the uplink load is less than an uplink transmission requirement, transmitting the feedback cycle adjustment request to the user equipment so that the user equipment increases the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request;

or when the uplink load is less than a second threshold, transmitting the feedback cycle adjustment request to the user equipment so that the user equipment reduces the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request.

5. The method according to claim 4, wherein the indication information is a channel quality indicator (CQI), or the indication information comprises the CQI and a pre-coding control indicator (PCI).

6. The method according to claim 4, further comprising:

setting priorities of a plurality of user equipments,

wherein the transmitting the feedback cycle adjustment request to the user equipment so that the user equipment increases the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request comprises;

transmitting in sequence, according to an increasing order of the priorities of the plurality of user equipments, the feedback cycle adjustment request to one or more user equipments until the uplink load is less than or equal to the first threshold or the remaining uplink resource of the uplink load exceeds or is equal to the uplink transmission requirement.

7. The method according to claim 4, further comprising:

setting priorities of a plurality of user equipments,

wherein the transmitting the feedback cycle adjustment request to the user equipment so that the user equipment reduces the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request comprises;

transmitting in sequence, according to a decreasing order of the priorities of the plurality of user equipments, the feedback cycle adjustment request to one or more user equipments until the uplink load exceeds or is equal to the second threshold.

8. A user equipment, comprising:

a setting unit, configured to initially set an indication information feedback mode of a user equipment to a deactivation state, wherein the user equipment in the deactivation state does not transmit indication information to a base station; and

a state changing unit, configured to, after receiving an indication information feedback request transmitted by a network side, set the indication information feedback mode of the user equipment to an activation state, wherein the user equipment in the activation state transmits the indication information to the base station;

wherein the user equipment further comprises;

a receiving unit, configured to receive a feedback cycle adjustment request transmitted by the base station; and

an adjustment unit, configured to adjust an indication information feedback cycle of the user equipment according to the feedback cycle adjustment request received by the receiving unit, wherein the user equipment in the activation state uses an adjusted indication information feedback cycle to transmit the indication information to the base station;

the adjustment unit, further configured to multiply the indication information feedback cycle by 2ⁿ, or increase or reduce the indication information feedback cycle to a designated value, wherein n is a non-zero integer, and wherein a value obtained by multiplying the indication information feedback cycle by 2ⁿ or the designated value is within an optional set, and the optional set comprises an optional value of the indication information feedback cycle.

9. The user equipment according to claim 8, wherein the state changing unit is further configured to:

set the indication information feedback mode to the deactivation state after neither downlink data nor the indication information feedback request transmitted by the network side is received during a first time period after setting the indication information feedback mode of the user equipment to the active state.

10. A base station device, comprising:

a generating unit, configured to generate an indication information feedback request; and

a transmitting unit, configured to transmit to a user equipment the indication information feedback request generated by the generating unit, so that the indication information feedback mode of the user equipment is set to an activation state, wherein the indication information feedback mode of the user equipment is initially set to a deactivation state, and the user equipment in the deactivation state does not transmit indication information to a base station, and the user equipment in the activation state uses an indication information feedback cycle to transmit the indication information to the base station;

wherein the base station device further comprises;

a monitoring unit, configured to monitor an uplink load of a cell;

a request unit, configured to transmit a feedback cycle adjustment request to the user equipment according to the uplink load;

wherein the request unit is further configured to transmit the feedback cycle adjustment request to the user equipment when the uplink load exceeds a first threshold, or a remaining uplink resource of the uplink load is less than an uplink transmission requirement so that the user equipment increases the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request or transmit the feedback cycle adjustment request to the user equipment when the uplink load is less than a second threshold so that the user equipment reduces the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request.

11. The base station device according to claim 10, wherein the indication information is a channel quality indicator (CQI), or the indication information comprises the CQI and a pre-coding control indicator (PCI).

12. A method for transmitting indication information, comprising:

initially setting an indication information feedback mode of a user equipment to a deactivation state to not to transmit indication information to a base station;

after receiving an indication information feedback request transmitted by a network side, setting the indication information feedback mode of the user equipment to an activation state; and

adjusting, by the user equipment, an indication information feedback cycle by multiplying the indication information feedback cycle by 2ⁿ, wherein n is a non-zero integer, and wherein a value obtained by multiplying the indication information feedback cycle by 2ⁿ is within an optional set, and the optional set comprises an optional value of the indication information feedback cycle;

transmitting the indication information to the base station, by the user equipment in the activation state, using the adjusted indication information feedback cycle.

13. The method according to claim 12, wherein the indication information feedback cycle is adjusted according to a feedback cycle adjustment request transmitted by the base station.

14. The method according to claim 12, wherein the indication information feedback cycle is adjusted according to whether downlink data is received from the base station during a consecutive time period after setting the indication information feedback mode of the user equipment to the activation state.

15. The method according to claim 12, wherein the indication information feedback cycle is adjusted by increasing or reducing the indication information feedback cycle to a designated value.

16. The method according to claim 15, wherein the designated value is within an optional set, and the optional set comprises an optional value of the indication information feedback cycle.

17. A method for transmitting indication information, comprising:

transmitting an indication information feedback request to a user equipment, which causes an indication information feedback mode of the user equipment to be set to an activation state;

receiving indication information from the user equipment in the activation state using an indication information feedback cycle;

monitoring an uplink load of a cell; and

when the uplink load exceeds a first threshold, or a remaining uplink resource of the uplink load is less than an uplink transmission requirement, transmitting a feedback cycle adjustment request to the user equipment, so that the user equipment increases the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request;

when the uplink load is less than a second threshold, transmitting the feedback cycle adjustment request to the user equipment, so that the user equipment reduces the indication information feedback cycle of the user equipment according to the feedback cycle adjustment request.