Provision of a paging response between transmissions of a paging indication and paging information

Patent metadata

Field	Value
Publication number	US-10455547-B2
Application number	US-201715708548-A
Country	US
Kind code	B2
Filing date	Sep 19, 2017
Priority date	Jan 9, 2017
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A method for wireless communication at a user equipment (UE) includes receiving, from a base station, an indication of uplink transmission resources allocated for a paging response to a paging indication, receiving the paging indication from the base station, and transmitting, to the base station, the paging response to the received paging indication. The paging response is transmitted on at least one of the uplink transmission resources allocated for the paging response. A method for wireless communication at a base station includes identifying uplink transmission resources for paging responses, transmitting an indication of the uplink transmission resources allocated for paging responses, transmitting a paging indication to at least one UE, and receiving a paging response from one or more UEs using a receive beam sweep. The paging response is received on an associated beam on at least one of the uplink transmission resources allocated for paging responses.

First claim

What is claimed is:

1. A method for wireless communication at a user equipment (UE), comprising:
receiving a paging indication from a base station during a paging procedure, wherein the paging indication indicates at least one uplink transmission resource allocated for a paging response of the paging procedure;
selecting the at least one uplink transmission resource by selecting from a number of opportunities for paging responses within a time interval and frequency range of uplink transmission resources allocated for paging responses, wherein the number of opportunities is allocated based at least in part on a presence or absence of time synchronization of UEs within a coverage area of the base station; and
transmitting, in response to the received paging indication, the paging response to the base station on the selected at least one uplink transmission resource allocated for the paging response, the paging response indicating a base station beam to be used by the base station to transmit paging information of the paging procedure.

2. The method of claim 1 , further comprising:
receiving the paging information from the base station, the paging information transmitted by the base station based at least in part on the base station beam indicated by the paging response.

3. The method of claim 1 , further comprising:
identifying the base station beam based at least in part on a link quality of a synchronization signal.

4. The method of claim 3 , wherein the synchronization signal comprises a primary synchronization signal (PSS), or a secondary synchronization signal (SSS), or a demodulation reference signal (DMRS) of a physical broadcast channel (PBCH), or a PBCH, or a combination thereof.

5. The method of claim 1 , wherein the uplink transmission resource identifies an uplink transmission time, or a subcarrier region, or a preamble, or a combination thereof.

6. The method of claim 1 , wherein the paging indication comprises a paging index associated with a group of mobile subscriber identities, and the paging response is transmitted on a paging index-specific uplink transmission resource.

7. The method of claim 6 , wherein the paging indication comprises a paging index-specific preamble.

8. The method of claim 6 , further comprising:
receiving, in response to transmitting the paging response, at least one UE identifier associated with a page corresponding to the paging index.

9. The method of claim 6 , further comprising:
receiving with the paging index an indication of a type of mobile subscriber associated with the paging index.

10. The method of claim 1 , wherein the paging indication includes a search space for a paging message, the search space comprises one or more slots or subframes for the paging message.

11. The method of claim 10 , further comprising:
monitoring resources indicated in the search space for the paging message.

12. A method for wireless communication at a base station, comprising:
allocating a number of opportunities for paging responses within a time interval and frequency range of uplink transmission resources allocated for paging responses, wherein the number of opportunities is allocated based at least in part on a presence or absence of time synchronization of user equipment (UEs) within a coverage area of the base station;
transmitting a paging indication to at least one UE during a paging procedure, wherein the paging indication indicates at least one uplink transmission resource allocated for a paging response of the paging procedure and a search space to be monitored for paging information;
receiving the paging response from one or more UEs of the at least one UE, the paging response received based at least in part on the transmitted paging indication and the allocated number of opportunities;
identifying a base station beam for the one or more UEs based at least in part on the received paging response; and
transmitting, responsive to receiving the paging response from the one or more UEs, the paging information of the paging procedure to the one or more UEs on the identified base station beam using resources in the search space.

13. The method of claim 12 , wherein information for the base station beam was received through the paging response.

14. The method of claim 12 , wherein receiving the paging response from the one or more UEs comprises:
receiving the paging response from the one or more UEs using a receive beam sweep.

15. The method of claim 12 , further comprising:
identifying uplink transmission resources for paging responses;
transmitting, using a transmit beam sweep, an indication of the uplink transmission resources allocated for a paging response; and
receiving the paging response from the one or more UEs based at least in part on the indicated uplink transmission resources.

16. The method of claim 12 , wherein the paging indication comprises a paging index associated with a group of mobile subscriber identities, and the paging response is transmitted on a paging index-specific uplink transmission resource.

17. The method of claim 16 , wherein:
the paging indication comprises a paging index-specific preamble.

18. The method of claim 16 , wherein the uplink transmission resources allocated for paging responses comprise uplink transmission resources allocated to each of a plurality of paging indices representing groups of mobile subscriber identities, and the paging indication comprises a transmission on an uplink transmission resource allocated to the paging index.

19. The method of claim 16 , further comprising:
transmitting with the paging index an indication of a type of mobile subscriber associated with the paging index; and
transmitting, in response to receiving the paging response, at least one UE identifier associated with a page corresponding to the paging index.

20. The method of claim 12 , wherein the paging indication is transmitted by sweeping through a set of beams.

21. The method of claim 12 , further comprising:
transmitting an indication of the uplink transmission resources allocated for paging responses over at least one of: a synchronization channel, a broadcast channel, a control channel, a radio resource control (RRC) channel, or a combination thereof.

22. The method of claim 12 , further comprising:
transmitting the paging indication over at least one of: a synchronization channel, a broadcast channel, a control channel, a radio resource control (RRC) channel, or a combination thereof.

23. The method of claim 12 , further comprising:
transmitting the paging indication over a broadcast channel simultaneously with synchronization signals by sweeping through a set of beams.

24. An apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
receive a paging indication from a base station during a paging procedure, wherein the paging indication indicates at least one uplink transmission resource allocated for a paging response of the paging procedure;
select the at least one uplink transmission resource by selecting from a number of opportunities for paging responses within a time interval and frequency range of uplink transmission resources allocated for paging responses, wherein the number of opportunities is allocated based at least in part on a presence or absence

Assignees

• Qualcomm Inc

Inventors

• Islam Muhammad Nazmul
• Luo Tao
• Hampel Karl Georg

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W56/001

  Synchronization between nodes · CPC title

• H04W88/02

  Terminal devices · CPC title

• H04W68/02 Primary

  Arrangements for increasing efficiency of notification or paging channel · CPC title