Joint resource pools for uplink communications
Examples refer to communication networks between user equipments, UEs, with other devices, such as a base station, BS. Examples refer to communication methods, e.g., for uplink, UL. A joint-resource pool (JRP) is defined.
1. A device, comprising:
at least one antenna; and
a communication circuit, wherein the communication circuit is configured for wireless communication via the antenna,
wherein the device is configured to:
receive configuration data of a joint-resource pool for uplink and communications of uplink data, wherein the uplink data is in physical resources of the joint-resource pool, wherein the physical resources of the joint-resource pool are shared with other devices;
transmit the uplink data in the joint-resource pool and, in case retransmission of a first portion of the uplink data is necessary, use a particular granted resource for retransmitting the first portion of the uplink data, and
access the joint-resource pool according to a listen-before-talk scheme.
2. The device of claim 1 , wherein the listen-before-talk scheme is a carrier sense multiple access with collision avoidance scheme.
3. The device of claim 1 , wherein the listen-before-talk scheme comprises uses a WiFi listen-before-talk scheme.
4. The device of claim 1 , wherein the retransmission is initiated when the device determines that no acknowledgment has been received within a threshold.
5. The device of claim 1 , further configured to:
use a particular granted resource for retransmitting the first portion of the uplink data; and
use the joint-resource pool for transmitting a second portion of the uplink data,
wherein the second portion of the uplink data is scheduled for the particular granted resource.
6. The device of claim 1 , further configured to use a ranking of joint-resource pool resources so as to give priority to higher-ranked joint-resource pool resources.
7. The device of claim 6 , further configured to:
transmit with preference using the first-ranked or last-ranked joint-resource pool resources.
8. The device of claim 6 , further configured to:
transmit using the first-ranked joint-resource pool resources, according to a random, semi-random or pseudo-random scheme, with higher probability or lower probability, depending on a goal.
9. The device of claim 1 , further configured to:
use a joint-resource pool table such that each row of the joint-resource pool table corresponds to at least one joint-resource pool resource;
allocate a third portion of the uplink data to be transmitted in the joint-resource pool table;
evacuate the joint-resource pool table according to the ranking.
10. The device of claim 1 , wherein the device is configured:
to use a transmission queue implemented at a medium access control layer and/or a physical layer, and
to evacuate the transmission queue using the joint-resource pool and/or the granted resources according to the configuration data.
11. The device of claim 10 , wherein rows of the transmission queue are associated to the rankings of the joint-resource pool resources to be chosen for transmission.
12. The device of claim 1 , further configured to:
access the joint-resource pool according to a frequency-hopping scheme.
13. The device of claim 1 , further configured to:
participate with other devices to a setup for defining and/or electing a central entity, so that the central entity signals the configuration data of the joint-resource pool for uplink communications in the joint-resource pool physical resources shared with the other devices.
14. The device of claim 1 , further configured to:
share joint-resource pool resources with another device, wherein the device employs a ranking list, wherein the ranking list is arranged such that higher-ranking joint-resource pool resources are inversely ordered with respect to lower-ranking joint-resource pool resources of a ranking list of the other device.
15. The device of claim 1 , configured to transmit the uplink data after a backoff timer has expired.
16. The device of claim 15 , wherein the backoff timer is provided to the device with a non-acknowledgement message.
17. The device of claim 15 , wherein the device is configured to have a backoff timer different from the other devices.
18. The device of claim 1 , wherein:
the joint-resource pool and the particular granted resource are Physical Uplink Shared Channel resources.
19. The device of claim 1 , wherein information from a sender to a recipient comprises an error or outage probability below a level within a time interval.
20. The device of claim 1 , wherein the device is configured such that, in case the device receives a mute signal, the device is prevented from accessing the joint-resource pool for a determined time.
21. The device of claim 20 , wherein the device is configured, in case of reception of a reactivating signal, to restart to access to the joint-resource pool.
22. The device of claim 1 , wherein the device is configured to stop transmitting using the resources of the joint-resource pool for a certain time period in response to signaling.
23. A method, comprising:
receiving, by a device, configuration data of a joint-resource pool for uplink communications of uplink data in physical resources of the joint-resource pool, wherein a joint-resource pool physical resource is shared by the device with at least one other device; and
transmitting, by the device, the uplink data in the joint-resource pool and, in case retransmission of a first portion of the uplink data is necessary, the device using a particular granted resource for retransmitting the first portion of the uplink data,
wherein the device accesses the joint-resource pool according to a listen-before-talk scheme.
24. A non-transitory digital storage medium having stored thereon machine readable instructions for performing a method when the machine readable instructions are executed by a processor, the method comprising:
receiving, by a device, configuration data of a joint-resource pool for uplink communications of uplink data in physical resources of the joint-resource pool, wherein a physical resource of the joint-resource pool is shared by the device with at least one other device; and
transmitting, by the device, the uplink data in the joint-resource pool and, in case retransmission of a first portion of the uplink data is necessary, the device using a particular granted resource for retransmitting the first portion of the uplink data,
wherein the device accesses the joint-resource pool performed according to a listen-before-talk scheme.