Method and apparatus for sending control channel information based on multi-sector cell networking

1. An access network device based on multi-sector cell networking, the access network device comprising:

at least one wireless transceiver, at least one processor, and at least one memory, wherein the memory is configured to store program code;

wherein the wireless transceiver is configured to receive, through each sector separately, an uplink signal sent by a user equipment (UE);

wherein the processor is configured to:

obtain, according to the uplink signal received by the wireless transceiver, uplink signal strength information corresponding to each sector, wherein each sector uses a same cell identity, and the uplink signal strength information is used to indicate a level of corresponding uplink signal strength,

select a working sector for the UE from sectors according to the uplink signal strength information corresponding to each sector, and

instruct the wireless transceiver to send control channel information to the UE through the working sector, and instruct the wireless transceiver not to send the control channel information to the UE through the sectors except the working sector; and

wherein the wireless transceiver is further configured to send the control channel information to the UE.

2. The access network device according to claim 1 , wherein the processor is configured to:

compare the uplink signal strength information corresponding to the sectors, and select a sector corresponding to a maximum value of uplink signal strength information as the working sector for the user equipment.

3. The access network device according to claim 2 , wherein the processor is further configured to:

when a working sector detection timer times out, start working sector detection, and compare the uplink signal strength information corresponding to the sectors.

4. The access network device according to claim 1 , wherein the processor is configured to:

select a first sector corresponding to a maximum value of uplink signal strength information as a first working sector for the UE; and

if a difference between the uplink signal strength information of the first working sector and uplink signal strength information of any other sector is greater than a preset threshold, determine that the first working sector is the working sector for the UE.

5. The access network device according to claim 1 , wherein the uplink signal strength information comprises any one of the following:

uplink reference signal received power (RSRP);

an uplink received signal strength indicator (RSSI); and

an uplink signal-to-interference ratio (SINR).

6. The access network device according to claim 1 , further comprising:

an evolved NodeB (eNB) in an long term evolution (LTE) system.

7. The access network device according to claim 1 , wherein the control channel information comprises:

grant information; or

feedback information of uplink data.

8. A method for sending control channel information based on multi-sector cell networking, the method comprising:

obtaining, by an access network device, according to an uplink signal sent by a user equipment CUE), uplink signal strength information corresponding to each sector, wherein each sector uses a same cell identity, and the uplink signal strength information is used to indicate a level of corresponding uplink signal strength;

selecting, by the access network device, a working sector for the UE from the sectors according to the uplink signal strength information corresponding to each sector; and

sending, by the access network device, the control channel information to the UE through the working sector, and skipping sending the control channel information to the UE through the sectors except the working sector.

9. The method according to claim 8 , wherein selecting, by the access network device, a working sector for the UE according to the uplink signal strength information corresponding to each sector comprises:

comparing, by the access network device, the uplink signal strength information corresponding to the sectors; and

selecting, by the access network device, a sector corresponding to a maximum value of uplink signal strength information as the working sector for the user equipment.

10. The method according to claim 9 , wherein comparing, by the access network device, the uplink signal strength information corresponding to the sectors comprises:

when a working sector detection timer times out, starting, by the access network device, working sector detection; and

comparing, by the access network device, the uplink signal strength information corresponding to the sectors.

11. The method according to claim 8 , wherein selecting, by the access network device, a working sector for the UE according to the uplink signal strength information corresponding to each sector comprises:

selecting, by the access network device, a first sector corresponding to a maximum value of uplink signal strength info/nation as a first working sector for the UE; and

if a difference between the uplink signal strength information of the first working sector and uplink signal strength information of any other sector is greater than a preset threshold, determining, by the access network device, that the first working sector is the working sector for the UE.

12. The method according to claim 8 , wherein the uplink signal strength information comprises any one of the following:

uplink reference signal received power (RSRP);

an uplink received signal strength indicator (RSSI); and

an uplink signal-to-interference ratio (SINR).

13. The method according to claim 8 , wherein the access network device comprises:

an evolved NodeB (eNB) in an long term evolution (LTE) system.

14. The method according to claim 8 , wherein the control channel information comprises:

grant information; or

feedback information of uplink data.