COMMUNICATIONS SYSTEM FOR TRANSMITTING AND RECEIVING DATA

• US 20160081117A1
• Filed: 04/15/2014
• Published: 03/17/2016
• Est. Priority Date: 04/22/2013
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Morioka, Yuichi
• Granted Patent: US 9,900,909 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• 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: Y02D 30/70 in wireless communication networks

Abstract

A communications system including infrastructure equipment providing a wireless interface to a communications device including a controller and a transceiver configured to transmit/receive signals representing the data to/from the infrastructure equipment over the wireless interface. The transceiver can transmit a request for services message to the infrastructure equipment, and receive a response message. The request for services message includes a delay period and the infrastructure equipment, in response to receiving the request for services message, processes the request to form the response message and stores the response message for transmission to the communications device. The response message is stored until expiry of the delay period or transmission of the response message, and the controller after transmission of the request for services can configure the transceiver to enter a reduced power state and to exit the reduced power state to receive the response message.

Claims

1. A communications system comprising infrastructure equipment arranged to provide a wireless interface to a communications device, the communications device comprising a controller and a transceiver configured to transmit and/or receive signals representing the data to and/or from the infrastructure equipment over the wireless interface, and the transceiver under control of the controller is configured

to transmit a request for services message to the infrastructure equipment, and

to receive a response message to the request for services message transmitted from the infrastructure equipment, wherein the request for services message includes a delay period and the infrastructure equipment, in response to receiving the request for services message, processes the request to form the response message and stores the response message for transmission to the communications device, the response message being stored until the expiry of the delay period or transmission of the response message, and the controller is configured after transmission of the request for services to configure the transceiver to enter a reduced power state in which the amount of power consumed by the transceiver is reduced and to exit the reduced power state to receive the response message.

2. A communications system as claimed in claim 1, wherein the controller is configured to control the transceiver

to transmit a random access request message to the infrastructure equipment requesting up-link communications resources for transmitting the request for services message and the infrastructure equipment is configured

to transmit a random access request response to the communications device granting up-link communications resources in response to receiving the random access request, and the communications device is configured

to transmit the request for services message in the allocated up-link communications resources to the infrastructure equipment.

3. A communications system as claimed in claim 2, wherein the controller is configured to control the transceiver prior to the expiry of the delay period

to transmit a second random access request message to the infrastructure equipment requesting up-link communications resources for transmitting a request for a response message to the infrastructure equipment, the request for a response message requesting a response to the request for services message, and in response to a granting of the up-link communications resources from the infrastructure equipment,

to transmit the request for response message in the allocated up-link communications resources to the infrastructure equipment, and

to receive a response message from the infrastructure equipment providing the requested services to the communications device in response to the request for services message, and

the infrastructure equipment is configured

to transmit a random access request response to the communications device granting up-link communications resources in response to receiving the second random access request from the transceiver,

to receive the request for a response message requesting a response to the request for services message, and

to transmit a response message to the communications device providing the requested services to the communications device in response to the request for services message.

4. A communications system as claimed in claim 2, wherein the controller is configured to control the transceiver to exit the reduced power state to receive the response message in response to the expiry of the delay period, and the infrastructure equipment is configured to transmit the response message to the transceiver in response to the expiry of the delay period.

5. A communications system as claimed in claim 2, wherein the random access request message transmitted by the transceiver to the infrastructure equipment requesting up-link communications resources includes an identifier identifying the communications device which has transmitted the random access request message and the transceiver is configured

to receive a random access response message from the infrastructure equipment which provides the granted up-link communications resources for transmitting the request for services message, the random access response including the identification number, and prior to the expiry of the delay period the transceiver is configured

to transmit a second random access request message, which includes the identification number to the infrastructure equipment, and

to receive in response to the second random access request message a response message from the infrastructure equipment providing the requested services to the communications device in response to the request for services message;

and the infrastructure equipment is configured

to transmit a random access response message providing the granted up-link communications resources for the transceiver to transmit the request for services message to the infrastructure equipment,

to receive the second random access request message from the communications device, and

to transmit, in response to the second random access request message, a response message providing the requested services to the communications device in response to the request for services message.

6. A communications system as claimed in claim 1, wherein the request for services message represents a request for a radio resources connection request to the communications network to establish a radio communications bearer for transmitting data to and/or from the communications network.

7. A communications system as claimed in claim 1, wherein the infrastructure equipment transmits an indication of the delay period and the controller is configured with the transceiver unit to receive the indication of the delay period from the communications network and to store the indication in data store.

8. A communications system as claimed in claim 1, wherein the delay period exceeds the time taken to process the request for services message and form the response message at the infrastructure equipment.

9. The communications system as claimed in claim 1, wherein the communications network is a 3GPP LTE mobile network and the request for services message is a Radio Resource Control request and the response to the request for services message is a Radio Resource Control Setup response.

10. Infrastructure equipment arranged to provide a wireless interface to a communications device forming part a communications network, the infrastructure equipment configured to transmit and/or receive signals representing data to and/or from the communications device over the wireless interface, and the infrastructure equipment is configured

to receive a request for services message from the communications device,

to transmit a response message to the request for services message to the communications device, wherein the request for services includes a delay period and the infrastructure equipment, in response to receiving the request for services message, processes the request to form the response message and stores the response message for transmission to the communications device, the response message being stored until expiry of the delay period or transmission of the response message.

11. Infrastructure equipment as claimed in claim 10, wherein the infrastructure is configured

to receive a random access request message from the communications device requesting up-link communications resources for transmitting the request for services message,

to transmit a random access request response to the communications device

granting up-link communications resources in response to receiving the random access request message, and

to receive the request for services message in the granted up-link resources from the communications device.

12. Infrastructure equipment as claimed in claim 11, wherein the infrastructure equipment is configured

to store the response to the request for services until the expiry of the delay period or transmission of the response message,

to receive a second random access request message requesting uplink communications resources for transmitting a request for a response message from the communications device,

to transmit a random access request response to the communications device granting up-link communications resources in response to receiving the second random access request message from the communications device,

to receive the request for a response message requesting a response to the request for services message, and

to transmit the response message to the communications device providing the requested services to the communications device in response to the request for services message.

13. Infrastructure equipment as claimed in claim 10, wherein the infrastructure equipment is configured to transmit the response message to the communications device in response to the expiry of the delay period.

14. Infrastructure equipment as claimed in claim 12, wherein the random access request message transmitted by the communications device to the infrastructure equipment requesting up-link communications resources includes an identifier identifying the communications device which has transmitted the random access request message and the infrastructure equipment is configured

to transmit a random access response message to the communications device which provides the granted up-link communications resources for transmitting the request for services message, the random access response including the identification number

to receive a second random access request message from the communications device, which includes the identification number,

to transmits in response to the second random access request message a response message to the communications device providing the requested services to the communications device in response to the request for services message.

15. Infrastructure equipment as claimed in claim 10, wherein the request for services message represents a request for a radio resources connection request to the communications network to establish a radio communications bearer for transmitting data to and/or from the communications network.

16. Infrastructure equipment as claimed in claim 10, wherein the delay period exceeds the time taken to process the request for services message at the infrastructure equipment.

17. Infrastructure equipment as claimed in claim 10, wherein the communications network is a 3GPP LTE mobile network and the request for services message is a Radio Resource Control request and the response to the request for services message is a Radio Resource Control Setup response.

18. A method for transmitting and receiving signals representing data to and/or from infrastructure equipment forming part of a communications network to and/or from a communications device, the method comprising

receiving a request for services from the communications device,

transmitting a response message to the request for services to the communications device, wherein the request for services message includes a delay period and the infrastructure equipment, in response to receiving the request for services,

processing the request for services and

storing the response message for transmission to the communications device, the response message being stored until the expiry of the delay period or transmission of the response message, and the controller is configured after transmission of the request for services to configure the transceiver to enter a reduced power state in which the amount of power consumed by the transceiver is reduced and to exit the reduced power state to receive the response message.

19-21. -21. (canceled)