Communication method and apparatus applied to hyper cell

• US 10,869,272 B2
• Filed: 08/31/2018
• Issued: 12/15/2020
• Est. Priority Date: 03/03/2016
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Shu, Bing, Zeng, Qinghai
• Primary Examiner(s): Abad, Jackie Zuniga
• Application Number:
  US16/120,034
• Publication Number:
  US 20180376422A1
• Time in Patent Office: 837 Days
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 28/0278 using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method includes determining, by a mobile device in a power saving state that is in a hyper cell, that there is to-be-sent uplink data, where the hyper cell comprises a plurality of transmission points (TPs), the hyper cell identifies the mobile device using a dedicated user equipment identity (DUI), and the mobile device in the power saving state reserves the DUI; sending, by the mobile device, an uplink instruction message to a radio access network controller or a core network controller based on the DUI by using a preconfigured uplink resource, wherein the uplink instruction message is used to instruct the mobile device to enter an activated state; and sending, by the mobile device in the activated state, the uplink data to the controller.

Claims

1. A method, comprising:

receiving, by a mobile device from a controller, an instruction message for entering a power saving state, the mobile device being in a hyper cell, wherein;

the instruction message comprises a configuration parameter indicating a preconfigured uplink resource to be used by the mobile device while the mobile device is in the power saving state;

the hyper cell comprises a plurality of transmission points (TPs);

a dedicated user equipment identity (DUI) identifies the mobile device in the hyper cell; and

the mobile device reserves the DUI when the mobile device is in the power saving state;

determining, by the mobile device, that there is uplink data to be sent to the controller, wherein the mobile device is in the power saving state when the mobile device determines that there is to-be-sent uplink data;

sending, by the mobile device, an uplink instruction message to the controller based on the DUI and using the preconfigured uplink resource, wherein the uplink instruction message indicates the mobile device will subsequently enter an activated state, wherein the mobile device, while in the power saving state, sends a tracking signal continuously in the hyper cell based on the DUI, and the mobile device sends the uplink instruction message using the tracking signal, wherein the tracking signal sent by the mobile device comprises a common tracking signal and a dedicated tracking signal, the mobile device sends the uplink instruction message by sending the dedicated tracking signal, and a time-frequency resource or a code resource that is allocated for sending the dedicated tracking signal is different from a time-frequency resource or a code resource that is allocated for sending the common tracking signal, and wherein the controller is a radio access network controller or a core network controller; and

sending, by the mobile device in the activated state, the uplink data to the controller.

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

sending, by the mobile device, a portion of the uplink data using the preconfigured uplink resource, wherein the uplink data comprises the portion of the uplink data and remaining data of the uplink data; and

wherein sending, by the mobile device in the activated state, the uplink data to the controller comprises;

sending, by the mobile device in the activated state, the remaining data of the uplink data to the controller.

3. The method according to claim 1, wherein the uplink instruction message is a scheduling request message or a buffer status report.

4. The method according to claim 1, wherein the preconfigured uplink resource is a grant-free uplink resource, and the grant-free uplink resource is a shared uplink resource allocated for the mobile device in the power saving state.

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

when the controller prepares to send downlink data to the mobile device when the mobile device is in the power saving state, receiving, by the mobile device, a downlink instruction message from the controller using a preconfigured downlink resource, wherein the downlink instruction message instructs the mobile device to enter the activated state;

sending, by the mobile device, a response message for the downlink instruction message to the controller, wherein the response message indicates that the mobile device has entered the activated state; and

receiving, by the mobile device in the activated state, the downlink data from the controller.

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

receiving, by the mobile device, a portion of the downlink data from the controller using the preconfigured downlink resource, wherein the downlink data comprises the portion of the downlink data and remaining data of the downlink data; and

wherein receiving, by the mobile device in the activated state, the downlink data from the controller comprises;

receiving, by the mobile device in the activated state from the controller, the remaining data of the downlink data.

7. The method according to claim 5, wherein:

the downlink instruction message is a paging message, and the preconfigured downlink resource is used to bear the paging message;

or

the downlink instruction message is a notification message, and the preconfigured downlink resource is used to bear the notification message.

8. The method according to claim 5, wherein the preconfigured downlink resource is a grant-free downlink resource, and the grant-free downlink resource is a shared downlink resource allocated for the mobile device in the power saving state.

9. A mobile device, comprising:

a transceiver, configured to;

receive, from a controller, an instruction message for entering a power saving state, the mobile device being in a hyper cell, wherein;

the instruction message comprises a configuration parameter indicating a preconfigured uplink resource to be used by the mobile device while the mobile device is in the power saving state;

the hyper cell comprises a plurality of transmission points (TPs);

the mobile device is identified in the hyper cell using a dedicated user equipment identity (DUI); and

the mobile device reserves the DUI when the mobile device is in the power saving state;

a processor, configured to;

determine that there is uplink data to be sent to the controller, wherein the mobile device is in the power saving state when the mobile device determines that there is to-be-sent uplink data; and

the transceiver is further configured to;

after the processor determines that there is the uplink data to be sent to the controller, send an uplink instruction message to the controller based on the DUI by using the preconfigured uplink resource, wherein the controller is a radio access network controller or a core network controller, wherein the uplink instruction message indicates the mobile device will subsequently enter an activated state, wherein the mobile device, when in the power saving state, sends a tracking signal continuously in the hyper cell based on the DUI, and the mobile device sends the uplink instruction message using the tracking signal, and wherein the tracking signal sent by the mobile device comprises a common tracking signal and a dedicated tracking signal, the mobile device sends the uplink instruction message by sending the dedicated tracking signal, and a time-frequency resource or a code resource allocated for sending the dedicated tracking signal is different from a time-frequency resource or a code resource allocated for sending the common tracking signal; and

send the uplink data to the controller after the mobile device enters the activated state.

10. The mobile device according to claim 9, wherein the transceiver is further configured to:

send a portion of the uplink data by using the preconfigured uplink resource, wherein the uplink data comprises the portion of the uplink data and remaining data of the uplink data; and

wherein the transceiver is configured to;

after the mobile device enters the activated state, send the remaining data of the uplink data to the controller.

11. The mobile device according to claim 9, wherein the uplink instruction message is a scheduling request message or a buffer status report.

12. The mobile device according to claim 9, wherein the preconfigured uplink resource is a grant-free uplink resource, and the grant-free uplink resource is a shared uplink resource allocated for the mobile device in the power saving state.

13. The mobile device according to claim 9, wherein the transceiver is further configured to:

when the controller prepares to send downlink data to the mobile device in the power saving state, receive a downlink instruction message from the controller using a preconfigured downlink resource, wherein the downlink instruction message instructs the mobile device to enter the activated state;

send a response message for the downlink instruction message to the controller, wherein the response message indicates that the mobile device has entered the activated state; and

receive the downlink data from the controller after the mobile device enters the activated state.

14. The mobile device according to claim 13, wherein the transceiver is further configured to:

receive a portion of the downlink data from the controller using the preconfigured downlink resource, wherein the downlink data comprises the portion of the downlink data and remaining data of the downlink data; and

wherein the transceiver is configured to;

after the mobile device enters the activated state, receive, from the controller, the remaining data of the downlink data.

15. The mobile device according to claim 13, wherein the downlink instruction message is a paging message, and the preconfigured downlink resource is used to bear the paging message;

or

the downlink instruction message is a notification message, and the preconfigured downlink resource is used to bear the notification message.

16. The mobile device according to claim 13, wherein the preconfigured downlink resource is a grant-free downlink resource, and the grant-free downlink resource is a shared downlink resource allocated for the mobile device in the power saving state.