METHOD AND BASE STATION FOR UPLINK RESOURCE ALLOCATION IN TIME-SHARING CHANNEL MODE

• US 20090290560A1
• Filed: 07/29/2009
• Published: 11/26/2009
• Est. Priority Date: 02/02/2007
• Status: Abandoned Application

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Feng, Shulan
• Application Number:
  US12/511,684
• Publication Number:
  US 20090290560A1
• Time in Patent Office: Days
• US Class Current: 370/336
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

A method for uplink resource allocation in a time-sharing channel mode is provided. The method includes the following steps. A base station accesses a network, and receives an uplink resource selection notification message from a neighboring base station, in which the uplink resource selection notification message carries information of uplink resources selected by the neighboring base station; and the base station initially accessing the network allocates uplink resources that do not overlap the uplink resources selected by the neighboring base station. A base station for uplink resource allocation in a time-sharing channel mode is also provided. By using such method and base station, different uplink resources are allocated to different base stations, so as to prevent possible conflict among one another, and avoid repeatedly transmitting the same signaling, thereby saving the resources.

Claims

1. A method for uplink resource allocation in a time-sharing channel mode, comprising:

accessing, by a base station, and receiving an uplink resource selection notification message from a neighboring base station, wherein the uplink resource selection notification message carries information of uplink resources selected by the neighboring base station; and

allocating, by the base station initially accessing a network, uplink resources that do not overlap the uplink resources selected by the neighboring base station.

2. The method according to claim 1, wherein the time-sharing channel mode is a time-sharing media access control (MAC) frame mode, and the information of the uplink resources selected by the neighboring base station is information of a master sub-frame selected by the neighboring base station.

3. The method according to claim 1, wherein the allocating, by the base station initially accessing the network, the uplink resources that do not overlap the uplink resources selected by the neighboring base station comprises:

selecting, by the base station initially accessing the network, a sub-frame different from the sub-frame selected by the neighboring base station as a master sub-frame of the base station; and

allocating the uplink resources by the master sub-frame of the base station, or allocating the uplink resources by the master sub-frame of the base station or during a common sub-frame.

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

notifying, by the base station initially accessing the network, the uplink resources selected by the base station to the neighboring base station.

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

if any base station in the network needs to update an uplink resource setting thereof, judging, by the base station, whether an updated uplink resource setting conflicts with an uplink resource setting of the neighboring base station;

notifying, by the base station, the updated uplink resource setting to the neighboring base station if no conflict occurs;

sending, by the base station, an uplink resource setting update request to the neighboring base station if the conflict occurs, wherein if a message indicating that the neighboring base station agrees to release the uplink resources thereof returned by the neighboring base station is received, the base station updates the uplink resource setting thereof, or if a message indicating that the neighboring base station does not agree to release the uplink resources thereof returned by the neighboring base station is received, the base station maintains an original uplink resource setting or initiates a new process for updating the uplink resource setting thereof.

6. The method according to claim 1, wherein

the uplink resources are uplink initial ranging resources;

or

the uplink resources are uplink initial ranging resources, uplink periodic ranging resources, and uplink handover ranging resources.

7. A base station for uplink resource allocation in a time-sharing channel mode, comprising:

a detection module, a resource selection notification module, and an uplink resource allocation module;

wherein

the detection module is adapted to detect whether a neighboring base station exists in a network;

the resource selection notification module is adapted to get the detection result from the detection module; and

get an uplink resource selection notification message from the neighboring base station, and notify uplink resources selected by the neighboring base station to the uplink resource allocation module; and

the uplink resource allocation module is adapted to get a notification message from the resource selection notification module, and allocate uplink resources that do not overlap the uplink resources selected by the neighboring base station according to the notification message.

8. The base station according to claim 7, wherein the uplink resource allocation module is further adapted to allocate the uplink resources according to a demand of the uplink resource allocation module if the resource selection notification module notifies that no neighboring base station exists in the network.

9. The base station according to claim 7, further comprising:

a resource update module and an update request sending module, wherein

the resource update module is adapted to receive an uplink resource setting update request from the update request sending module;

judge whether an updated uplink resource setting conflicts with an uplink resource setting of the neighboring base station; and

notify the updated uplink resource setting to the neighboring base station if no conflict occurs, or send an uplink resource setting update request to the neighboring base station if the conflict occurs and send a response message received from the neighboring base station to the update request sending module; and

the update request sending module is adapted to send the uplink resource setting update request to the resource update module, and notify the uplink resource allocation module to update or maintain an original uplink resource setting according to the response message from the neighboring base station sent by the resource update module, wherein if the response message indicates that the neighboring base station agrees to release the uplink resources thereof, the update request sending module notifies the uplink resource allocation module to update the original uplink resource setting; and

if the response message indicates that the neighboring base station does not agree to release the uplink resources thereof, the update request sending module notifies the uplink resource allocation module to maintain the original uplink resource setting.

10. The base station according to claim 9, further comprising:

an update request receiving module, adapted to receive an uplink resource setting update request from the neighboring base station, and return a response message indicating whether the base station agrees to release the uplink resources of the base station to the neighboring base station.